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wp-content/plugins/smart-slider-3/Nextend/Framework/Misc/Str.php

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+<?php
+
+
+namespace Nextend\Framework\Misc;
+
+
+use Nextend\Framework\Misc\StringPhp\MultiByte;
+use Nextend\Framework\Misc\StringPhp\SingleByte;
+use Nextend\Framework\Misc\StringPhp\StringInterface;
+use Nextend\Framework\Pattern\SingletonTrait;
+
+class Str {
+
+    use SingletonTrait;
+
+    /**
+     * @var StringInterface
+     */
+    private static $engine;
+
+    protected function init() {
+        if (function_exists('mb_strpos')) {
+            self::$engine = new MultiByte();
+        } else {
+            self::$engine = new SingleByte();
+        }
+    }
+
+    public static function strpos($haystack, $needle, $offset = 0) {
+        return self::$engine->strpos($haystack, $needle, $offset);
+    }
+
+    public static function substr($string, $start, $length = null) {
+        return self::$engine->substr($string, $start, $length);
+    }
+
+    public static function strlen($string) {
+        return self::$engine->strlen($string);
+    }
+}
+
+Str::getInstance();