1644 lines
51 KiB
PHP
1644 lines
51 KiB
PHP
<?php
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/**
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* WPSEO plugin file.
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*
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* @package WPSEO\Internals
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* @since 1.5.4
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*/
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// Avoid direct calls to this file.
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if ( ! defined( 'WPSEO_VERSION' ) ) {
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header( 'Status: 403 Forbidden' );
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header( 'HTTP/1.1 403 Forbidden' );
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exit();
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}
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/**
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* Class: WPSEO_Replace_Vars.
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*
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* This class implements the replacing of `%%variable_placeholders%%` with their real value based on the current
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* requested page/post/cpt/etc in text strings.
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*/
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class WPSEO_Replace_Vars {
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/**
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* Default post/page/cpt information.
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*
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* @var array
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*/
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protected $defaults = [
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'ID' => '',
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'name' => '',
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'post_author' => '',
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'post_content' => '',
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'post_date' => '',
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'post_excerpt' => '',
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'post_modified' => '',
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'post_title' => '',
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'taxonomy' => '',
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'term_id' => '',
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'term404' => '',
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];
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/**
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* Current post/page/cpt information.
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*
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* @var stdClass
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*/
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protected $args;
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/**
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* Help texts for use in WPSEO -> Search appearance tabs.
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*
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* @var array
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*/
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protected static $help_texts = [];
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/**
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* Register of additional variable replacements registered by other plugins/themes.
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*
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* @var array
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*/
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protected static $external_replacements = [];
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/**
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* Setup the help texts and external replacements as statics so they will be available to all instances.
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*/
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public static function setup_statics_once() {
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if ( self::$help_texts === [] ) {
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self::set_basic_help_texts();
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self::set_advanced_help_texts();
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}
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if ( self::$external_replacements === [] ) {
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/**
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* Action: 'wpseo_register_extra_replacements' - Allows for registration of additional
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* variables to replace.
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*/
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do_action( 'wpseo_register_extra_replacements' );
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}
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}
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/**
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* Register new replacement %%variables%%.
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* For use by other plugins/themes to register extra variables.
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*
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* @see wpseo_register_var_replacement() for a usage example.
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*
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* @param string $var_to_replace The name of the variable to replace, i.e. '%%var%%'.
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* Note: the surrounding %% are optional.
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* @param mixed $replace_function Function or method to call to retrieve the replacement value for the variable.
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* Uses the same format as add_filter/add_action function parameter and
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* should *return* the replacement value. DON'T echo it.
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* @param string $type Type of variable: 'basic' or 'advanced', defaults to 'advanced'.
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* @param string $help_text Help text to be added to the help tab for this variable.
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*
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* @return bool Whether the replacement function was succesfully registered.
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*/
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public static function register_replacement( $var_to_replace, $replace_function, $type = 'advanced', $help_text = '' ) {
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$success = false;
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if ( is_string( $var_to_replace ) && $var_to_replace !== '' ) {
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$var_to_replace = self::remove_var_delimiter( $var_to_replace );
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if ( preg_match( '`^[A-Z0-9_-]+$`i', $var_to_replace ) === false ) {
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trigger_error( esc_html__( 'A replacement variable can only contain alphanumeric characters, an underscore or a dash. Try renaming your variable.', 'wordpress-seo' ), E_USER_WARNING );
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}
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elseif ( strpos( $var_to_replace, 'cf_' ) === 0 || strpos( $var_to_replace, 'ct_' ) === 0 ) {
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trigger_error( esc_html__( 'A replacement variable can not start with "%%cf_" or "%%ct_" as these are reserved for the WPSEO standard variable variables for custom fields and custom taxonomies. Try making your variable name unique.', 'wordpress-seo' ), E_USER_WARNING );
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}
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elseif ( ! method_exists( __CLASS__, 'retrieve_' . $var_to_replace ) ) {
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if ( $var_to_replace !== '' && ! isset( self::$external_replacements[ $var_to_replace ] ) ) {
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self::$external_replacements[ $var_to_replace ] = $replace_function;
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$replacement_variable = new WPSEO_Replacement_Variable( $var_to_replace, $var_to_replace, $help_text );
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self::register_help_text( $type, $replacement_variable );
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$success = true;
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}
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else {
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trigger_error( esc_html__( 'A replacement variable with the same name has already been registered. Try making your variable name unique.', 'wordpress-seo' ), E_USER_WARNING );
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}
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}
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else {
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trigger_error( esc_html__( 'You cannot overrule a WPSEO standard variable replacement by registering a variable with the same name. Use the "wpseo_replacements" filter instead to adjust the replacement value.', 'wordpress-seo' ), E_USER_WARNING );
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}
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}
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return $success;
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}
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/**
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* Replace `%%variable_placeholders%%` with their real value based on the current requested page/post/cpt/etc.
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*
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* @param string $text The string to replace the variables in.
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* @param array $args The object some of the replacement values might come from,
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* could be a post, taxonomy or term.
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* @param array $omit Variables that should not be replaced by this function.
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*
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* @return string
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*/
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public function replace( $text, $args, $omit = [] ) {
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$text = wp_strip_all_tags( $text );
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// Let's see if we can bail super early.
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if ( strpos( $text, '%%' ) === false ) {
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return YoastSEO()->helpers->string->standardize_whitespace( $text );
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}
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$args = (array) $args;
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if ( isset( $args['post_content'] ) && ! empty( $args['post_content'] ) ) {
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$args['post_content'] = YoastSEO()->helpers->string->strip_shortcode( $args['post_content'] );
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}
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if ( isset( $args['post_excerpt'] ) && ! empty( $args['post_excerpt'] ) ) {
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$args['post_excerpt'] = YoastSEO()->helpers->string->strip_shortcode( $args['post_excerpt'] );
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}
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$this->args = (object) wp_parse_args( $args, $this->defaults );
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// Clean $omit array.
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if ( is_array( $omit ) && $omit !== [] ) {
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$omit = array_map( [ __CLASS__, 'remove_var_delimiter' ], $omit );
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}
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$replacements = [];
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if ( preg_match_all( '`%%([^%]+(%%single)?)%%?`iu', $text, $matches ) ) {
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$replacements = $this->set_up_replacements( $matches, $omit );
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}
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/**
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* Filter: 'wpseo_replacements' - Allow customization of the replacements before they are applied.
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*
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* @api array $replacements The replacements.
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*
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* @param array $args The object some of the replacement values might come from,
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* could be a post, taxonomy or term.
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*/
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$replacements = apply_filters( 'wpseo_replacements', $replacements, $this->args );
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// Do the actual replacements.
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if ( is_array( $replacements ) && $replacements !== [] ) {
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$text = str_replace(
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array_keys( $replacements ),
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// Make sure to exclude replacement values that are arrays e.g. coming from a custom field serialized value.
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array_filter( array_values( $replacements ), 'is_scalar' ),
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$text
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);
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}
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/**
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* Filter: 'wpseo_replacements_final' - Allow overruling of whether or not to remove placeholders
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* which didn't yield a replacement.
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*
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* @example <code>add_filter( 'wpseo_replacements_final', '__return_false' );</code>
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*
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* @api bool $final
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*/
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if ( apply_filters( 'wpseo_replacements_final', true ) === true && ( isset( $matches[1] ) && is_array( $matches[1] ) ) ) {
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// Remove non-replaced variables.
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$remove = array_diff( $matches[1], $omit ); // Make sure the $omit variables do not get removed.
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$remove = array_map( [ __CLASS__, 'add_var_delimiter' ], $remove );
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$text = str_replace( $remove, '', $text );
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}
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// Undouble separators which have nothing between them, i.e. where a non-replaced variable was removed.
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if ( isset( $replacements['%%sep%%'] ) && ( is_string( $replacements['%%sep%%'] ) && $replacements['%%sep%%'] !== '' ) ) {
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$q_sep = preg_quote( $replacements['%%sep%%'], '`' );
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$text = preg_replace( '`' . $q_sep . '(?:\s*' . $q_sep . ')*`u', $replacements['%%sep%%'], $text );
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}
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// Remove superfluous whitespace.
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$text = YoastSEO()->helpers->string->standardize_whitespace( $text );
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return $text;
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}
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/**
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* Register a new replacement variable if it has not been registered already.
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*
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* @param string $var_to_replace The name of the variable to replace, i.e. '%%var%%'.
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* Note: the surrounding %% are optional.
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* @param mixed $replace_function Function or method to call to retrieve the replacement value for the variable.
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* Uses the same format as add_filter/add_action function parameter and
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* should *return* the replacement value. DON'T echo it.
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* @param string $type Type of variable: 'basic' or 'advanced', defaults to 'advanced'.
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* @param string $help_text Help text to be added to the help tab for this variable.
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*
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* @return bool `true` if the replace var has been registered, `false` if not.
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*/
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public function safe_register_replacement( $var_to_replace, $replace_function, $type = 'advanced', $help_text = '' ) {
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if ( ! $this->has_been_registered( $var_to_replace ) ) {
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return self::register_replacement( $var_to_replace, $replace_function, $type, $help_text );
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}
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return false;
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}
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/**
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* Checks whether the given replacement variable has already been registered or not.
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*
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* @param string $replacement_variable The replacement variable to check, including the variable delimiter (e.g. `%%var%%`).
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*
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* @return bool `true` if the replacement variable has already been registered.
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*/
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public function has_been_registered( $replacement_variable ) {
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$replacement_variable = self::remove_var_delimiter( $replacement_variable );
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return isset( self::$external_replacements[ $replacement_variable ] );
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}
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/**
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* Returns the list of hidden replace vars.
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*
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* E.g. the replace vars that should work, but are not advertised.
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*
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* @return string[] The list of hidden replace vars.
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*/
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public function get_hidden_replace_vars() {
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return [
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'currentdate',
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'currentyear',
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'currentmonth',
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'currentday',
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'post_year',
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'post_month',
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'post_day',
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'author_first_name',
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'author_last_name',
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'permalink',
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'post_content',
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'category_title',
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];
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}
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/**
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* Retrieve the replacements for the variables found.
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*
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* @param array $matches Variables found in the original string - regex result.
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* @param array $omit Variables that should not be replaced by this function.
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*
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* @return array Retrieved replacements - this might be a smaller array as some variables
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* may not yield a replacement in certain contexts.
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*/
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private function set_up_replacements( $matches, $omit ) {
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$replacements = [];
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// @todo Figure out a way to deal with external functions starting with cf_/ct_.
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foreach ( $matches[1] as $k => $var ) {
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// Don't set up replacements which should be omitted.
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if ( in_array( $var, $omit, true ) ) {
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continue;
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}
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// Deal with variable variable names first.
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if ( strpos( $var, 'cf_' ) === 0 ) {
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$replacement = $this->retrieve_cf_custom_field_name( $var );
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}
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elseif ( strpos( $var, 'ct_desc_' ) === 0 ) {
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$replacement = $this->retrieve_ct_desc_custom_tax_name( $var );
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}
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elseif ( strpos( $var, 'ct_' ) === 0 ) {
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$single = ( isset( $matches[2][ $k ] ) && $matches[2][ $k ] !== '' );
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$replacement = $this->retrieve_ct_custom_tax_name( $var, $single );
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}
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// Deal with non-variable variable names.
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elseif ( method_exists( $this, 'retrieve_' . $var ) ) {
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$method_name = 'retrieve_' . $var;
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$replacement = $this->$method_name();
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}
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// Deal with externally defined variable names.
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elseif ( isset( self::$external_replacements[ $var ] ) && ! is_null( self::$external_replacements[ $var ] ) ) {
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$replacement = call_user_func( self::$external_replacements[ $var ], $var, $this->args );
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}
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// Replacement retrievals can return null if no replacement can be determined, root those outs.
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if ( isset( $replacement ) ) {
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$var = self::add_var_delimiter( $var );
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$replacements[ $var ] = $replacement;
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}
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unset( $replacement, $single, $method_name );
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}
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return $replacements;
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}
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/* *********************** BASIC VARIABLES ************************** */
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/**
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* Retrieve the post/cpt categories (comma separated) for use as replacement string.
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*
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* @return string|null
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*/
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private function retrieve_category() {
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$replacement = null;
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if ( ! empty( $this->args->ID ) ) {
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$cat = $this->get_terms( $this->args->ID, 'category' );
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if ( $cat !== '' ) {
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return $cat;
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}
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}
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if ( isset( $this->args->cat_name ) && ! empty( $this->args->cat_name ) ) {
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$replacement = $this->args->cat_name;
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}
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return $replacement;
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}
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/**
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* Retrieve the category description for use as replacement string.
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*
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* @return string|null
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*/
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private function retrieve_category_description() {
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return $this->retrieve_term_description();
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}
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/**
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* Retrieve the date of the post/page/cpt for use as replacement string.
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*
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* @return string|null
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*/
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private function retrieve_date() {
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$replacement = null;
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if ( $this->args->post_date !== '' ) {
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// Returns a string.
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$replacement = YoastSEO()->helpers->date->format_translated( $this->args->post_date, get_option( 'date_format' ) );
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}
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else {
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if ( get_query_var( 'day' ) && get_query_var( 'day' ) !== '' ) {
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// Returns a string.
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$replacement = get_the_date();
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}
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else {
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if ( single_month_title( ' ', false ) && single_month_title( ' ', false ) !== '' ) {
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// Returns a string.
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$replacement = single_month_title( ' ', false );
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}
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elseif ( get_query_var( 'year' ) !== '' ) {
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// Returns an integer, let's cast to string.
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$replacement = (string) get_query_var( 'year' );
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}
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}
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}
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return $replacement;
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}
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/**
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* Retrieve the post/page/cpt excerpt for use as replacement string.
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* The excerpt will be auto-generated if it does not exist.
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*
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* @return string|null
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*/
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private function retrieve_excerpt() {
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$replacement = null;
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$locale = \get_locale();
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// Japanese doesn't have a jp_JP variant in WP.
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$limit = ( $locale === 'ja' ) ? 80 : 156;
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// The check `post_password_required` is because excerpt must be hidden for a post with a password.
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if ( ! empty( $this->args->ID ) && ! post_password_required( $this->args->ID ) ) {
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if ( $this->args->post_excerpt !== '' ) {
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$replacement = wp_strip_all_tags( $this->args->post_excerpt );
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}
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elseif ( $this->args->post_content !== '' ) {
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$content = strip_shortcodes( $this->args->post_content );
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$content = wp_strip_all_tags( $content );
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if ( mb_strlen( $content ) <= $limit ) {
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return $content;
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}
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$replacement = wp_html_excerpt( $content, $limit );
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// Check if the description has space and trim the auto-generated string to a word boundary.
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if ( strrpos( $replacement, ' ' ) ) {
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$replacement = substr( $replacement, 0, strrpos( $replacement, ' ' ) );
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}
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}
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}
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return $replacement;
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}
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/**
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* Retrieve the post/page/cpt excerpt for use as replacement string (without auto-generation).
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*
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* @return string|null
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*/
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private function retrieve_excerpt_only() {
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$replacement = null;
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// The check `post_password_required` is because excerpt must be hidden for a post with a password.
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if ( ! empty( $this->args->ID ) && $this->args->post_excerpt !== '' && ! post_password_required( $this->args->ID ) ) {
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$replacement = wp_strip_all_tags( $this->args->post_excerpt );
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}
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return $replacement;
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}
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/**
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* Retrieve the title of the parent page of the current page/cpt for use as replacement string.
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* Only applicable for hierarchical post types.
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*
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* @todo Check: shouldn't this use $this->args as well ?
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*
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* @return string|null
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*/
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private function retrieve_parent_title() {
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$replacement = null;
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if ( ! empty( $this->args->ID ) ) {
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$parent_id = wp_get_post_parent_id( $this->args->ID );
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if ( $parent_id ) {
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$replacement = get_the_title( $parent_id );
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}
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}
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return $replacement;
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}
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/**
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* Retrieve the current search phrase for use as replacement string.
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*
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* @return string|null
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*/
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private function retrieve_searchphrase() {
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$replacement = null;
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$search = get_query_var( 's' );
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if ( $search !== '' ) {
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$replacement = esc_html( $search );
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}
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return $replacement;
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}
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/**
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* Retrieve the separator for use as replacement string.
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*
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* @return string Retrieves the title separator.
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*/
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private function retrieve_sep() {
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return YoastSEO()->helpers->options->get_title_separator();
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}
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|
/**
|
|
* Retrieve the site's tag line / description for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_sitedesc() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$description = wp_strip_all_tags( get_bloginfo( 'description' ) );
|
|
if ( $description !== '' ) {
|
|
$replacement = $description;
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the site's name for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_sitename() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$sitename = YoastSEO()->helpers->site->get_site_name();
|
|
if ( $sitename !== '' ) {
|
|
$replacement = $sitename;
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current tag/tags for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_tag() {
|
|
$replacement = null;
|
|
|
|
if ( ! empty( $this->args->ID ) ) {
|
|
$tags = $this->get_terms( $this->args->ID, 'post_tag' );
|
|
if ( $tags !== '' ) {
|
|
$replacement = $tags;
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the tag description for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_tag_description() {
|
|
return $this->retrieve_term_description();
|
|
}
|
|
|
|
/**
|
|
* Retrieve the term description for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_term_description() {
|
|
$replacement = null;
|
|
|
|
if ( ! empty( $this->args->term_id ) && ! empty( $this->args->taxonomy ) ) {
|
|
$term_desc = get_term_field( 'description', $this->args->term_id, $this->args->taxonomy );
|
|
if ( $term_desc !== '' ) {
|
|
$replacement = wp_strip_all_tags( $term_desc );
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the term name for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_term_title() {
|
|
$replacement = null;
|
|
|
|
if ( ! empty( $this->args->taxonomy ) && ! empty( $this->args->name ) ) {
|
|
$replacement = $this->args->name;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the title of the post/page/cpt for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_title() {
|
|
$replacement = null;
|
|
|
|
if ( is_string( $this->args->post_title ) && $this->args->post_title !== '' ) {
|
|
$replacement = $this->args->post_title;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve primary category for use as replacement string.
|
|
*
|
|
* @return bool|int|null
|
|
*/
|
|
private function retrieve_primary_category() {
|
|
$primary_category = null;
|
|
|
|
if ( ! empty( $this->args->ID ) ) {
|
|
$wpseo_primary_category = new WPSEO_Primary_Term( 'category', $this->args->ID );
|
|
|
|
$term_id = $wpseo_primary_category->get_primary_term();
|
|
$term = get_term( $term_id );
|
|
|
|
if ( ! is_wp_error( $term ) && ! empty( $term ) ) {
|
|
$primary_category = $term->name;
|
|
}
|
|
}
|
|
|
|
return $primary_category;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the string generated by get_the_archive_title().
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_archive_title() {
|
|
return get_the_archive_title();
|
|
}
|
|
|
|
/* *********************** ADVANCED VARIABLES ************************** */
|
|
|
|
/**
|
|
* Determine the page numbering of the current post/page/cpt.
|
|
*
|
|
* @param string $request Either 'nr'|'max' - whether to return the page number or the max number of pages.
|
|
*
|
|
* @return int|null
|
|
*/
|
|
private function determine_pagenumbering( $request = 'nr' ) {
|
|
global $wp_query, $post;
|
|
$max_num_pages = null;
|
|
$page_number = null;
|
|
|
|
$max_num_pages = 1;
|
|
|
|
if ( ! is_singular() ) {
|
|
$page_number = get_query_var( 'paged' );
|
|
if ( $page_number === 0 || $page_number === '' ) {
|
|
$page_number = 1;
|
|
}
|
|
|
|
if ( ! empty( $wp_query->max_num_pages ) ) {
|
|
$max_num_pages = $wp_query->max_num_pages;
|
|
}
|
|
}
|
|
else {
|
|
$page_number = get_query_var( 'page' );
|
|
if ( $page_number === 0 || $page_number === '' ) {
|
|
$page_number = 1;
|
|
}
|
|
|
|
if ( isset( $post->post_content ) ) {
|
|
$max_num_pages = ( substr_count( $post->post_content, '<!--nextpage-->' ) + 1 );
|
|
}
|
|
}
|
|
|
|
$return = null;
|
|
|
|
switch ( $request ) {
|
|
case 'nr':
|
|
$return = $page_number;
|
|
break;
|
|
case 'max':
|
|
$return = $max_num_pages;
|
|
break;
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Determine the post type names for the current post/page/cpt.
|
|
*
|
|
* @param string $request Either 'single'|'plural' - whether to return the single or plural form.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function determine_pt_names( $request = 'single' ) {
|
|
global $wp_query;
|
|
$pt_single = null;
|
|
$pt_plural = null;
|
|
$post_type = '';
|
|
|
|
if ( isset( $wp_query->query_vars['post_type'] ) && ( ( is_string( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] !== '' ) || ( is_array( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] !== [] ) ) ) {
|
|
$post_type = $wp_query->query_vars['post_type'];
|
|
}
|
|
elseif ( isset( $this->args->post_type ) && ( is_string( $this->args->post_type ) && $this->args->post_type !== '' ) ) {
|
|
$post_type = $this->args->post_type;
|
|
}
|
|
else {
|
|
// Make it work in preview mode.
|
|
$post = $wp_query->get_queried_object();
|
|
if ( $post instanceof WP_Post ) {
|
|
$post_type = $post->post_type;
|
|
}
|
|
}
|
|
|
|
if ( is_array( $post_type ) ) {
|
|
$post_type = reset( $post_type );
|
|
}
|
|
|
|
if ( $post_type !== '' ) {
|
|
$pt = get_post_type_object( $post_type );
|
|
$pt_single = $pt->name;
|
|
$pt_plural = $pt->name;
|
|
if ( isset( $pt->labels->singular_name ) ) {
|
|
$pt_single = $pt->labels->singular_name;
|
|
}
|
|
if ( isset( $pt->labels->name ) ) {
|
|
$pt_plural = $pt->labels->name;
|
|
}
|
|
}
|
|
|
|
$return = null;
|
|
|
|
switch ( $request ) {
|
|
case 'single':
|
|
$return = $pt_single;
|
|
break;
|
|
case 'plural':
|
|
$return = $pt_plural;
|
|
break;
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the attachment caption for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_caption() {
|
|
return $this->retrieve_excerpt_only();
|
|
}
|
|
|
|
/**
|
|
* Retrieve a post/page/cpt's custom field value for use as replacement string.
|
|
*
|
|
* @param string $var_to_replace The complete variable to replace which includes the name of
|
|
* the custom field which value is to be retrieved.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_cf_custom_field_name( $var_to_replace ) {
|
|
$replacement = null;
|
|
|
|
if ( is_string( $var_to_replace ) && $var_to_replace !== '' ) {
|
|
$field = substr( $var_to_replace, 3 );
|
|
if ( ! empty( $this->args->ID ) ) {
|
|
// Post meta can be arrays and in this case we need to exclude them.
|
|
$name = get_post_meta( $this->args->ID, $field, true );
|
|
if ( $name !== '' && ! is_array( $name ) ) {
|
|
$replacement = $name;
|
|
}
|
|
}
|
|
elseif ( ! empty( $this->args->term_id ) ) {
|
|
$name = get_term_meta( $this->args->term_id, $field, true );
|
|
if ( $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve a post/page/cpt's custom taxonomies for use as replacement string.
|
|
*
|
|
* @param string $var_to_replace The complete variable to replace which includes the name of
|
|
* the custom taxonomy which value(s) is to be retrieved.
|
|
* @param bool $single Whether to retrieve only the first or all values for the taxonomy.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_ct_custom_tax_name( $var_to_replace, $single = false ) {
|
|
$replacement = null;
|
|
|
|
if ( ( is_string( $var_to_replace ) && $var_to_replace !== '' ) && ! empty( $this->args->ID ) ) {
|
|
$tax = substr( $var_to_replace, 3 );
|
|
$name = $this->get_terms( $this->args->ID, $tax, $single );
|
|
if ( $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve a post/page/cpt's custom taxonomies description for use as replacement string.
|
|
*
|
|
* @param string $var_to_replace The complete variable to replace which includes the name of
|
|
* the custom taxonomy which description is to be retrieved.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_ct_desc_custom_tax_name( $var_to_replace ) {
|
|
$replacement = null;
|
|
|
|
if ( is_string( $var_to_replace ) && $var_to_replace !== '' ) {
|
|
$tax = substr( $var_to_replace, 8 );
|
|
if ( ! empty( $this->args->ID ) ) {
|
|
$terms = get_the_terms( $this->args->ID, $tax );
|
|
if ( is_array( $terms ) && $terms !== [] ) {
|
|
$term = current( $terms );
|
|
$term_desc = get_term_field( 'description', $term->term_id, $tax );
|
|
if ( $term_desc !== '' ) {
|
|
$replacement = wp_strip_all_tags( $term_desc );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current date for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string The formatted current date.
|
|
*/
|
|
private function retrieve_currentdate() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$replacement = date_i18n( get_option( 'date_format' ) );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current day for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string The current day.
|
|
*/
|
|
private function retrieve_currentday() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$replacement = date_i18n( 'j' );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current month for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string The current month.
|
|
*/
|
|
private function retrieve_currentmonth() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$replacement = date_i18n( 'F' );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current time for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string The formatted current time.
|
|
*/
|
|
private function retrieve_currenttime() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$replacement = date_i18n( get_option( 'time_format' ) );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current year for use as replacement string.
|
|
*
|
|
* The `$replacement` variable is static because it doesn't change depending
|
|
* on the context. See https://github.com/Yoast/wordpress-seo/pull/1172#issuecomment-46019482.
|
|
*
|
|
* @return string The current year.
|
|
*/
|
|
private function retrieve_currentyear() {
|
|
static $replacement;
|
|
|
|
if ( ! isset( $replacement ) ) {
|
|
$replacement = date_i18n( 'Y' );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt's focus keyword for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_focuskw() {
|
|
// Retrieve focuskw from a Post.
|
|
if ( ! empty( $this->args->ID ) ) {
|
|
$focus_kw = WPSEO_Meta::get_value( 'focuskw', $this->args->ID );
|
|
if ( $focus_kw !== '' ) {
|
|
return $focus_kw;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
// Retrieve focuskw from a Term.
|
|
if ( ! empty( $this->args->term_id ) ) {
|
|
$focus_kw = WPSEO_Taxonomy_Meta::get_term_meta( $this->args->term_id, $this->args->taxonomy, 'focuskw' );
|
|
if ( $focus_kw !== '' ) {
|
|
return $focus_kw;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt ID for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_id() {
|
|
$replacement = null;
|
|
|
|
if ( ! empty( $this->args->ID ) ) {
|
|
// The post/page/cpt ID is an integer, let's cast to string.
|
|
$replacement = (string) $this->args->ID;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt modified time for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_modified() {
|
|
$replacement = null;
|
|
|
|
if ( ! empty( $this->args->post_modified ) ) {
|
|
$replacement = YoastSEO()->helpers->date->format_translated( $this->args->post_modified, get_option( 'date_format' ) );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt author's "nice name" for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_name() {
|
|
$replacement = null;
|
|
|
|
$user_id = (int) $this->retrieve_userid();
|
|
$name = get_the_author_meta( 'display_name', $user_id );
|
|
if ( $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt author's users description for use as a replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_user_description() {
|
|
$replacement = null;
|
|
|
|
$user_id = (int) $this->retrieve_userid();
|
|
$description = get_the_author_meta( 'description', $user_id );
|
|
if ( $description !== '' ) {
|
|
$replacement = $description;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current page number with context (i.e. 'page 2 of 4') for use as replacement string.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function retrieve_page() {
|
|
$replacement = null;
|
|
|
|
$max = $this->determine_pagenumbering( 'max' );
|
|
$nr = $this->determine_pagenumbering( 'nr' );
|
|
$sep = $this->retrieve_sep();
|
|
|
|
if ( $max > 1 && $nr > 1 ) {
|
|
/* translators: 1: current page number, 2: total number of pages. */
|
|
$replacement = sprintf( $sep . ' ' . __( 'Page %1$d of %2$d', 'wordpress-seo' ), $nr, $max );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current page number for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_pagenumber() {
|
|
$replacement = null;
|
|
|
|
$nr = $this->determine_pagenumbering( 'nr' );
|
|
if ( isset( $nr ) && $nr > 0 ) {
|
|
$replacement = (string) $nr;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current page total for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_pagetotal() {
|
|
$replacement = null;
|
|
|
|
$max = $this->determine_pagenumbering( 'max' );
|
|
if ( isset( $max ) && $max > 0 ) {
|
|
$replacement = (string) $max;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post type plural label for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_pt_plural() {
|
|
$replacement = null;
|
|
|
|
$name = $this->determine_pt_names( 'plural' );
|
|
if ( isset( $name ) && $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post type single label for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_pt_single() {
|
|
$replacement = null;
|
|
|
|
$name = $this->determine_pt_names( 'single' );
|
|
if ( isset( $name ) && $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the slug which caused the 404 for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_term404() {
|
|
$replacement = null;
|
|
|
|
if ( $this->args->term404 !== '' ) {
|
|
$replacement = sanitize_text_field( str_replace( '-', ' ', $this->args->term404 ) );
|
|
}
|
|
else {
|
|
$error_request = get_query_var( 'pagename' );
|
|
if ( $error_request !== '' ) {
|
|
$replacement = sanitize_text_field( str_replace( '-', ' ', $error_request ) );
|
|
}
|
|
else {
|
|
$error_request = get_query_var( 'name' );
|
|
if ( $error_request !== '' ) {
|
|
$replacement = sanitize_text_field( str_replace( '-', ' ', $error_request ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt author's user id for use as replacement string.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function retrieve_userid() {
|
|
// The user ID is an integer, let's cast to string.
|
|
$replacement = ! empty( $this->args->post_author ) ? (string) $this->args->post_author : (string) get_query_var( 'author' );
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt's published year for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_post_year() {
|
|
if ( empty( $this->args->ID ) ) {
|
|
return null;
|
|
}
|
|
|
|
return \get_the_date( 'Y', $this->args->ID );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt's published month for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_post_month() {
|
|
if ( empty( $this->args->ID ) ) {
|
|
return null;
|
|
}
|
|
|
|
return \get_the_date( 'F', $this->args->ID );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt's published day for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_post_day() {
|
|
if ( empty( $this->args->ID ) ) {
|
|
return null;
|
|
}
|
|
|
|
return \get_the_date( 'd', $this->args->ID );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt author's first name for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_author_first_name() {
|
|
$replacement = null;
|
|
|
|
$user_id = (int) $this->retrieve_userid();
|
|
$name = get_the_author_meta( 'first_name', $user_id );
|
|
if ( $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt author's last name for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_author_last_name() {
|
|
$replacement = null;
|
|
|
|
$user_id = (int) $this->retrieve_userid();
|
|
$name = get_the_author_meta( 'last_name', $user_id );
|
|
if ( $name !== '' ) {
|
|
$replacement = $name;
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt permalink for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_permalink() {
|
|
if ( empty( $this->args->ID ) ) {
|
|
return null;
|
|
}
|
|
|
|
return \get_permalink( $this->args->ID );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post/page/cpt content for use as replacement string.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_post_content() {
|
|
$replacement = null;
|
|
|
|
// The check `post_password_required` is because content must be hidden for a post with a password.
|
|
if ( ! empty( $this->args->ID ) && $this->args->post_content !== '' && ! post_password_required( $this->args->ID ) ) {
|
|
$content = strip_shortcodes( $this->args->post_content );
|
|
$replacement = wp_strip_all_tags( $content );
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current or first category title. To be used for import data from AIOSEO.
|
|
* The code derives from AIOSEO's way of dealing with that var, so we can ensure 100% seamless transition.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function retrieve_category_title() {
|
|
if ( empty( $this->args ) || empty( $this->args->ID ) ) {
|
|
return null;
|
|
}
|
|
$post_id = $this->args->ID;
|
|
|
|
$post = get_post( $post_id );
|
|
$taxonomies = get_object_taxonomies( $post, 'objects' );
|
|
|
|
foreach ( $taxonomies as $taxonomy_slug => $taxonomy ) {
|
|
if ( ! $taxonomy->hierarchical ) {
|
|
continue;
|
|
}
|
|
$post_terms = get_the_terms( $post_id, $taxonomy_slug );
|
|
if ( is_array( $post_terms ) && count( $post_terms ) > 0 ) {
|
|
// AiOSEO takes the name of whatever the first hierarchical taxonomy is.
|
|
$term = $post_terms[0];
|
|
if ( $term ) {
|
|
return $term->name;
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/* *********************** HELP TEXT RELATED ************************** */
|
|
|
|
/**
|
|
* Set the help text for a user/plugin/theme defined extra variable.
|
|
*
|
|
* @param string $type Type of variable: 'basic' or 'advanced'.
|
|
* @param WPSEO_Replacement_Variable $replacement_variable The replacement variable to register.
|
|
*/
|
|
private static function register_help_text( $type, WPSEO_Replacement_Variable $replacement_variable ) {
|
|
$identifier = $replacement_variable->get_variable();
|
|
|
|
if ( ( is_string( $type ) && in_array( $type, [ 'basic', 'advanced' ], true ) )
|
|
&& ( $identifier !== '' && ! isset( self::$help_texts[ $type ][ $identifier ] ) )
|
|
) {
|
|
self::$help_texts[ $type ][ $identifier ] = $replacement_variable;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generates a list of replacement variables based on the help texts.
|
|
*
|
|
* @return array List of replace vars.
|
|
*/
|
|
public function get_replacement_variables_with_labels() {
|
|
self::setup_statics_once();
|
|
|
|
$custom_variables = [];
|
|
foreach ( array_merge( WPSEO_Custom_Fields::get_custom_fields(), WPSEO_Custom_Taxonomies::get_custom_taxonomies() ) as $custom_variable ) {
|
|
$custom_variables[ $custom_variable ] = new WPSEO_Replacement_Variable( $custom_variable, $this->get_label( $custom_variable ), '' );
|
|
}
|
|
|
|
$replacement_variables = array_filter(
|
|
array_merge( self::$help_texts['basic'], self::$help_texts['advanced'] ),
|
|
[ $this, 'is_not_prefixed' ],
|
|
ARRAY_FILTER_USE_KEY
|
|
);
|
|
|
|
$hidden = $this->get_hidden_replace_vars();
|
|
|
|
return array_values(
|
|
array_map(
|
|
static function ( WPSEO_Replacement_Variable $replacement_variable ) use ( $hidden ) {
|
|
$name = $replacement_variable->get_variable();
|
|
|
|
return [
|
|
'name' => $name,
|
|
'value' => '',
|
|
'label' => $replacement_variable->get_label(),
|
|
'hidden' => in_array( $name, $hidden, true ),
|
|
];
|
|
},
|
|
array_merge( $replacement_variables, $custom_variables )
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Generates a list of replacement variables based on the help texts.
|
|
*
|
|
* @return array List of replace vars.
|
|
*/
|
|
public function get_replacement_variables_list() {
|
|
self::setup_statics_once();
|
|
|
|
$replacement_variables = array_merge(
|
|
$this->get_replacement_variables(),
|
|
WPSEO_Custom_Fields::get_custom_fields(),
|
|
WPSEO_Custom_Taxonomies::get_custom_taxonomies()
|
|
);
|
|
|
|
return array_map( [ $this, 'format_replacement_variable' ], $replacement_variables );
|
|
}
|
|
|
|
/**
|
|
* Creates a merged associative array of both the basic and advanced help texts.
|
|
*
|
|
* @return array Array with the replacement variables.
|
|
*/
|
|
private function get_replacement_variables() {
|
|
$help_texts = array_merge( self::$help_texts['basic'], self::$help_texts['advanced'] );
|
|
|
|
return array_filter( array_keys( $help_texts ), [ $this, 'is_not_prefixed' ] );
|
|
}
|
|
|
|
/**
|
|
* Checks whether the replacement variable contains a `ct_` or `cf_` prefix, because they follow different logic.
|
|
*
|
|
* @param string $replacement_variable The replacement variable.
|
|
*
|
|
* @return bool True when the replacement variable is not prefixed.
|
|
*/
|
|
private function is_not_prefixed( $replacement_variable ) {
|
|
$prefixes = [ 'cf_', 'ct_' ];
|
|
$prefix = $this->get_prefix( $replacement_variable );
|
|
|
|
return ! in_array( $prefix, $prefixes, true );
|
|
}
|
|
|
|
/**
|
|
* Strip the prefix from a replacement variable name.
|
|
*
|
|
* @param string $replacement_variable The replacement variable.
|
|
*
|
|
* @return string The replacement variable name without the prefix.
|
|
*/
|
|
private function strip_prefix( $replacement_variable ) {
|
|
return substr( $replacement_variable, 3 );
|
|
}
|
|
|
|
/**
|
|
* Gets the prefix from a replacement variable name.
|
|
*
|
|
* @param string $replacement_variable The replacement variable.
|
|
*
|
|
* @return string The prefix of the replacement variable.
|
|
*/
|
|
private function get_prefix( $replacement_variable ) {
|
|
return substr( $replacement_variable, 0, 3 );
|
|
}
|
|
|
|
/**
|
|
* Strips 'desc_' if present, and appends ' description' at the end.
|
|
*
|
|
* @param string $label The replacement variable.
|
|
*
|
|
* @return string The altered replacement variable name.
|
|
*/
|
|
private function handle_description( $label ) {
|
|
if ( strpos( $label, 'desc_' ) === 0 ) {
|
|
return substr( $label, 5 ) . ' description';
|
|
}
|
|
|
|
return $label;
|
|
}
|
|
|
|
/**
|
|
* Creates a label for prefixed replacement variables that matches the format in the editors.
|
|
*
|
|
* @param string $replacement_variable The replacement variable.
|
|
*
|
|
* @return string The replacement variable label.
|
|
*/
|
|
private function get_label( $replacement_variable ) {
|
|
$prefix = $this->get_prefix( $replacement_variable );
|
|
if ( $prefix === 'cf_' ) {
|
|
return $this->strip_prefix( $replacement_variable ) . ' (custom field)';
|
|
}
|
|
|
|
if ( $prefix === 'ct_' ) {
|
|
$label = $this->strip_prefix( $replacement_variable );
|
|
$label = $this->handle_description( $label );
|
|
return ucfirst( $label . ' (custom taxonomy)' );
|
|
}
|
|
|
|
if ( $prefix === 'pt_' ) {
|
|
if ( $replacement_variable === 'pt_single' ) {
|
|
return 'Post type (singular)';
|
|
}
|
|
|
|
return 'Post type (plural)';
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Formats the replacement variables.
|
|
*
|
|
* @param string $replacement_variable The replacement variable to format.
|
|
*
|
|
* @return array The formatted replacement variable.
|
|
*/
|
|
private function format_replacement_variable( $replacement_variable ) {
|
|
return [
|
|
'name' => $replacement_variable,
|
|
'value' => '',
|
|
'label' => $this->get_label( $replacement_variable ),
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Set/translate the help texts for the WPSEO standard basic variables.
|
|
*/
|
|
private static function set_basic_help_texts() {
|
|
/* translators: %s: wp_title() function. */
|
|
$separator_description = __( 'The separator defined in your theme\'s %s tag.', 'wordpress-seo' );
|
|
$separator_description = sprintf(
|
|
$separator_description,
|
|
// '<code>wp_title()</code>'
|
|
'wp_title()'
|
|
);
|
|
|
|
$replacement_variables = [
|
|
new WPSEO_Replacement_Variable( 'date', __( 'Date', 'wordpress-seo' ), __( 'Replaced with the date of the post/page', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'title', __( 'Title', 'wordpress-seo' ), __( 'Replaced with the title of the post/page', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'parent_title', __( 'Parent title', 'wordpress-seo' ), __( 'Replaced with the title of the parent page of the current page', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'archive_title', __( 'Archive title', 'wordpress-seo' ), __( 'Replaced with the normal title for an archive generated by WordPress', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'sitename', __( 'Site title', 'wordpress-seo' ), __( 'The site\'s name', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'sitedesc', __( 'Tagline', 'wordpress-seo' ), __( 'The site\'s tagline', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'excerpt', __( 'Excerpt', 'wordpress-seo' ), __( 'Replaced with the post/page excerpt (or auto-generated if it does not exist)', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'excerpt_only', __( 'Excerpt only', 'wordpress-seo' ), __( 'Replaced with the post/page excerpt (without auto-generation)', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'tag', __( 'Tag', 'wordpress-seo' ), __( 'Replaced with the current tag/tags', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'category', __( 'Category', 'wordpress-seo' ), __( 'Replaced with the post categories (comma separated)', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'primary_category', __( 'Primary category', 'wordpress-seo' ), __( 'Replaced with the primary category of the post/page', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'category_description', __( 'Category description', 'wordpress-seo' ), __( 'Replaced with the category description', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'tag_description', __( 'Tag description', 'wordpress-seo' ), __( 'Replaced with the tag description', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'term_description', __( 'Term description', 'wordpress-seo' ), __( 'Replaced with the term description', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'term_title', __( 'Term title', 'wordpress-seo' ), __( 'Replaced with the term name', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'searchphrase', __( 'Search phrase', 'wordpress-seo' ), __( 'Replaced with the current search phrase', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'term_hierarchy', __( 'Term hierarchy', 'wordpress-seo' ), __( 'Replaced with the term ancestors hierarchy', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'sep', __( 'Separator', 'wordpress-seo' ), $separator_description ),
|
|
new WPSEO_Replacement_Variable( 'currentdate', __( 'Current date', 'wordpress-seo' ), __( 'Replaced with the current date', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'currentyear', __( 'Current year', 'wordpress-seo' ), __( 'Replaced with the current year', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'currentmonth', __( 'Current month', 'wordpress-seo' ), __( 'Replaced with the current month', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'currentday', __( 'Current day', 'wordpress-seo' ), __( 'Replaced with the current day', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'post_year', __( 'Post year', 'wordpress-seo' ), __( 'Replaced with the year the post was published', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'post_month', __( 'Post month', 'wordpress-seo' ), __( 'Replaced with the month the post was published', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'post_day', __( 'Post day', 'wordpress-seo' ), __( 'Replaced with the day the post was published', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'author_first_name', __( 'Author first name', 'wordpress-seo' ), __( 'Replaced with the first name of the author', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'author_last_name', __( 'Author last name', 'wordpress-seo' ), __( 'Replaced with the last name of the author', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'permalink', __( 'Permalink', 'wordpress-seo' ), __( 'Replaced with the permalink', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'post_content', __( 'Post Content', 'wordpress-seo' ), __( 'Replaced with the post content', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'category_title', __( 'Category Title', 'wordpress-seo' ), __( 'Current or first category title', 'wordpress-seo' ) ),
|
|
];
|
|
|
|
foreach ( $replacement_variables as $replacement_variable ) {
|
|
self::register_help_text( 'basic', $replacement_variable );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set/translate the help texts for the WPSEO standard advanced variables.
|
|
*/
|
|
private static function set_advanced_help_texts() {
|
|
$replacement_variables = [
|
|
new WPSEO_Replacement_Variable( 'pt_single', __( 'Post type (singular)', 'wordpress-seo' ), __( 'Replaced with the content type single label', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'pt_plural', __( 'Post type (plural)', 'wordpress-seo' ), __( 'Replaced with the content type plural label', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'modified', __( 'Modified', 'wordpress-seo' ), __( 'Replaced with the post/page modified time', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'id', __( 'ID', 'wordpress-seo' ), __( 'Replaced with the post/page ID', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'name', __( 'Name', 'wordpress-seo' ), __( 'Replaced with the post/page author\'s \'nicename\'', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'user_description', __( 'User description', 'wordpress-seo' ), __( 'Replaced with the post/page author\'s \'Biographical Info\'', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'page', __( 'Page', 'wordpress-seo' ), __( 'Replaced with the current page number with context (i.e. page 2 of 4)', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'pagetotal', __( 'Pagetotal', 'wordpress-seo' ), __( 'Replaced with the current page total', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'pagenumber', __( 'Pagenumber', 'wordpress-seo' ), __( 'Replaced with the current page number', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'caption', __( 'Caption', 'wordpress-seo' ), __( 'Attachment caption', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'focuskw', __( 'Focus keyword', 'wordpress-seo' ), __( 'Replaced with the posts focus keyphrase', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'term404', __( 'Term404', 'wordpress-seo' ), __( 'Replaced with the slug which caused the 404', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'cf_<custom-field-name>', '<custom-field-name> ' . __( '(custom field)', 'wordpress-seo' ), __( 'Replaced with a posts custom field value', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'ct_<custom-tax-name>', '<custom-tax-name> ' . __( '(custom taxonomy)', 'wordpress-seo' ), __( 'Replaced with a posts custom taxonomies, comma separated.', 'wordpress-seo' ) ),
|
|
new WPSEO_Replacement_Variable( 'ct_desc_<custom-tax-name>', '<custom-tax-name> ' . __( 'description (custom taxonomy)', 'wordpress-seo' ), __( 'Replaced with a custom taxonomies description', 'wordpress-seo' ) ),
|
|
];
|
|
|
|
foreach ( $replacement_variables as $replacement_variable ) {
|
|
self::register_help_text( 'advanced', $replacement_variable );
|
|
}
|
|
}
|
|
|
|
/* *********************** GENERAL HELPER METHODS ************************** */
|
|
|
|
/**
|
|
* Remove the '%%' delimiters from a variable string.
|
|
*
|
|
* @param string $text Variable string to be cleaned.
|
|
*
|
|
* @return string
|
|
*/
|
|
private static function remove_var_delimiter( $text ) {
|
|
return trim( $text, '%' );
|
|
}
|
|
|
|
/**
|
|
* Add the '%%' delimiters to a variable string.
|
|
*
|
|
* @param string $text Variable string to be delimited.
|
|
*
|
|
* @return string
|
|
*/
|
|
private static function add_var_delimiter( $text ) {
|
|
return '%%' . $text . '%%';
|
|
}
|
|
|
|
/**
|
|
* Retrieve a post's terms, comma delimited.
|
|
*
|
|
* @param int $id ID of the post to get the terms for.
|
|
* @param string $taxonomy The taxonomy to get the terms for this post from.
|
|
* @param bool $return_single If true, return the first term.
|
|
*
|
|
* @return string Either a single term or a comma delimited string of terms.
|
|
*/
|
|
public function get_terms( $id, $taxonomy, $return_single = false ) {
|
|
$output = '';
|
|
|
|
// If we're on a specific tag, category or taxonomy page, use that.
|
|
if ( ! empty( $this->args->term_id ) ) {
|
|
$output = $this->args->name;
|
|
}
|
|
elseif ( ! empty( $id ) && ! empty( $taxonomy ) ) {
|
|
$terms = get_the_terms( $id, $taxonomy );
|
|
if ( is_array( $terms ) && $terms !== [] ) {
|
|
foreach ( $terms as $term ) {
|
|
if ( $return_single ) {
|
|
$output = $term->name;
|
|
break;
|
|
}
|
|
else {
|
|
$output .= $term->name . ', ';
|
|
}
|
|
}
|
|
$output = rtrim( trim( $output ), ',' );
|
|
}
|
|
}
|
|
unset( $terms, $term );
|
|
|
|
/**
|
|
* Allows filtering of the terms list used to replace %%category%%, %%tag%%
|
|
* and %%ct_<custom-tax-name>%% variables.
|
|
*
|
|
* @api string $output Comma-delimited string containing the terms.
|
|
* @api string $taxonomy The taxonomy of the terms.
|
|
*/
|
|
return apply_filters( 'wpseo_terms', $output, $taxonomy );
|
|
}
|
|
|
|
/**
|
|
* Gets a taxonomy term hierarchy including the term to get the parents for.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function get_term_hierarchy() {
|
|
if ( ! is_taxonomy_hierarchical( $this->args->taxonomy ) ) {
|
|
return '';
|
|
}
|
|
|
|
$separator = ' ' . $this->retrieve_sep() . ' ';
|
|
|
|
$args = [
|
|
'format' => 'name',
|
|
'separator' => $separator,
|
|
'link' => false,
|
|
'inclusive' => true,
|
|
];
|
|
|
|
return rtrim(
|
|
get_term_parents_list( $this->args->term_id, $this->args->taxonomy, $args ),
|
|
$separator
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the term ancestors hierarchy.
|
|
*
|
|
* @return string|null The term ancestors hierarchy.
|
|
*/
|
|
private function retrieve_term_hierarchy() {
|
|
$replacement = null;
|
|
|
|
if ( ! empty( $this->args->term_id ) && ! empty( $this->args->taxonomy ) ) {
|
|
$hierarchy = $this->get_term_hierarchy();
|
|
|
|
if ( $hierarchy !== '' ) {
|
|
$replacement = esc_html( $hierarchy );
|
|
}
|
|
}
|
|
|
|
return $replacement;
|
|
}
|
|
}
|