1392 lines
32 KiB
PHP
1392 lines
32 KiB
PHP
<?php
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namespace Illuminate\Support;
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use ArrayAccess;
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use ArrayIterator;
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use Illuminate\Support\Traits\EnumeratesValues;
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use Illuminate\Support\Traits\Macroable;
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use stdClass;
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class Collection implements ArrayAccess, Enumerable
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{
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use EnumeratesValues, Macroable;
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/**
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* The items contained in the collection.
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*
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* @var array
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*/
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protected $items = [];
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/**
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* Create a new collection.
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*
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* @param mixed $items
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* @return void
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*/
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public function __construct($items = [])
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{
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$this->items = $this->getArrayableItems($items);
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}
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/**
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* Create a new collection by invoking the callback a given amount of times.
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*
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* @param int $number
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* @param callable|null $callback
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* @return static
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*/
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public static function times($number, callable $callback = null)
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{
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if ($number < 1) {
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return new static;
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}
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if (is_null($callback)) {
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return new static(range(1, $number));
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}
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return (new static(range(1, $number)))->map($callback);
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}
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/**
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* Get all of the items in the collection.
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*
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* @return array
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*/
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public function all()
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{
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return $this->items;
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}
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/**
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* Get a lazy collection for the items in this collection.
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*
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* @return \Illuminate\Support\LazyCollection
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*/
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public function lazy()
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{
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return new LazyCollection($this->items);
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}
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/**
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* Get the average value of a given key.
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*
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* @param callable|string|null $callback
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* @return mixed
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*/
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public function avg($callback = null)
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{
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$callback = $this->valueRetriever($callback);
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$items = $this->map(function ($value) use ($callback) {
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return $callback($value);
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})->filter(function ($value) {
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return ! is_null($value);
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});
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if ($count = $items->count()) {
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return $items->sum() / $count;
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}
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}
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/**
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* Get the median of a given key.
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*
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* @param string|array|null $key
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* @return mixed
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*/
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public function median($key = null)
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{
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$values = (isset($key) ? $this->pluck($key) : $this)
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->filter(function ($item) {
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return ! is_null($item);
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})->sort()->values();
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$count = $values->count();
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if ($count === 0) {
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return;
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}
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$middle = (int) ($count / 2);
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if ($count % 2) {
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return $values->get($middle);
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}
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return (new static([
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$values->get($middle - 1), $values->get($middle),
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]))->average();
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}
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/**
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* Get the mode of a given key.
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*
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* @param string|array|null $key
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* @return array|null
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*/
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public function mode($key = null)
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{
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if ($this->count() === 0) {
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return;
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}
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$collection = isset($key) ? $this->pluck($key) : $this;
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$counts = new self;
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$collection->each(function ($value) use ($counts) {
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$counts[$value] = isset($counts[$value]) ? $counts[$value] + 1 : 1;
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});
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$sorted = $counts->sort();
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$highestValue = $sorted->last();
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return $sorted->filter(function ($value) use ($highestValue) {
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return $value == $highestValue;
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})->sort()->keys()->all();
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}
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/**
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* Collapse the collection of items into a single array.
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*
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* @return static
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*/
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public function collapse()
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{
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return new static(Arr::collapse($this->items));
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}
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/**
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* Determine if an item exists in the collection.
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*
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* @param mixed $key
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* @param mixed $operator
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* @param mixed $value
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* @return bool
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*/
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public function contains($key, $operator = null, $value = null)
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{
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if (func_num_args() === 1) {
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if ($this->useAsCallable($key)) {
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$placeholder = new stdClass;
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return $this->first($key, $placeholder) !== $placeholder;
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}
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return in_array($key, $this->items);
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}
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return $this->contains($this->operatorForWhere(...func_get_args()));
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}
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/**
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* Cross join with the given lists, returning all possible permutations.
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*
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* @param mixed ...$lists
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* @return static
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*/
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public function crossJoin(...$lists)
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{
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return new static(Arr::crossJoin(
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$this->items, ...array_map([$this, 'getArrayableItems'], $lists)
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));
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}
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/**
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* Get the items in the collection that are not present in the given items.
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*
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* @param mixed $items
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* @return static
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*/
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public function diff($items)
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{
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return new static(array_diff($this->items, $this->getArrayableItems($items)));
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}
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/**
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* Get the items in the collection that are not present in the given items, using the callback.
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*
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* @param mixed $items
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* @param callable $callback
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* @return static
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*/
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public function diffUsing($items, callable $callback)
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{
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return new static(array_udiff($this->items, $this->getArrayableItems($items), $callback));
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}
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/**
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* Get the items in the collection whose keys and values are not present in the given items.
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*
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* @param mixed $items
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* @return static
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*/
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public function diffAssoc($items)
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{
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return new static(array_diff_assoc($this->items, $this->getArrayableItems($items)));
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}
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/**
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* Get the items in the collection whose keys and values are not present in the given items, using the callback.
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*
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* @param mixed $items
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* @param callable $callback
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* @return static
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*/
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public function diffAssocUsing($items, callable $callback)
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{
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return new static(array_diff_uassoc($this->items, $this->getArrayableItems($items), $callback));
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}
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/**
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* Get the items in the collection whose keys are not present in the given items.
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*
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* @param mixed $items
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* @return static
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*/
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public function diffKeys($items)
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{
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return new static(array_diff_key($this->items, $this->getArrayableItems($items)));
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}
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/**
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* Get the items in the collection whose keys are not present in the given items, using the callback.
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*
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* @param mixed $items
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* @param callable $callback
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* @return static
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*/
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public function diffKeysUsing($items, callable $callback)
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{
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return new static(array_diff_ukey($this->items, $this->getArrayableItems($items), $callback));
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}
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/**
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* Retrieve duplicate items from the collection.
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*
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* @param callable|null $callback
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* @param bool $strict
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* @return static
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*/
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public function duplicates($callback = null, $strict = false)
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{
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$items = $this->map($this->valueRetriever($callback));
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$uniqueItems = $items->unique(null, $strict);
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$compare = $this->duplicateComparator($strict);
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$duplicates = new static;
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foreach ($items as $key => $value) {
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if ($uniqueItems->isNotEmpty() && $compare($value, $uniqueItems->first())) {
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$uniqueItems->shift();
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} else {
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$duplicates[$key] = $value;
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}
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}
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return $duplicates;
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}
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/**
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* Retrieve duplicate items from the collection using strict comparison.
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*
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* @param callable|null $callback
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* @return static
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*/
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public function duplicatesStrict($callback = null)
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{
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return $this->duplicates($callback, true);
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}
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/**
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* Get the comparison function to detect duplicates.
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*
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* @param bool $strict
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* @return \Closure
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*/
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protected function duplicateComparator($strict)
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{
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if ($strict) {
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return function ($a, $b) {
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return $a === $b;
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};
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}
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return function ($a, $b) {
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return $a == $b;
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};
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}
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/**
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* Get all items except for those with the specified keys.
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*
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* @param \Illuminate\Support\Collection|mixed $keys
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* @return static
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*/
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public function except($keys)
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{
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if ($keys instanceof Enumerable) {
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$keys = $keys->all();
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} elseif (! is_array($keys)) {
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$keys = func_get_args();
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}
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return new static(Arr::except($this->items, $keys));
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}
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/**
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* Run a filter over each of the items.
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*
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* @param callable|null $callback
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* @return static
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*/
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public function filter(callable $callback = null)
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{
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if ($callback) {
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return new static(Arr::where($this->items, $callback));
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}
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return new static(array_filter($this->items));
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}
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/**
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* Get the first item from the collection passing the given truth test.
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*
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* @param callable|null $callback
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* @param mixed $default
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* @return mixed
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*/
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public function first(callable $callback = null, $default = null)
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{
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return Arr::first($this->items, $callback, $default);
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}
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/**
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* Get a flattened array of the items in the collection.
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*
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* @param int $depth
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* @return static
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*/
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public function flatten($depth = INF)
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{
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return new static(Arr::flatten($this->items, $depth));
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}
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/**
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* Flip the items in the collection.
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*
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* @return static
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*/
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public function flip()
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{
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return new static(array_flip($this->items));
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}
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/**
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* Remove an item from the collection by key.
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*
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* @param string|array $keys
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* @return $this
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*/
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public function forget($keys)
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{
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foreach ((array) $keys as $key) {
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$this->offsetUnset($key);
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}
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return $this;
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}
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/**
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* Get an item from the collection by key.
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*
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* @param mixed $key
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* @param mixed $default
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* @return mixed
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*/
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public function get($key, $default = null)
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{
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if ($this->offsetExists($key)) {
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return $this->items[$key];
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}
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return value($default);
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}
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/**
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* Group an associative array by a field or using a callback.
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*
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* @param array|callable|string $groupBy
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* @param bool $preserveKeys
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* @return static
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*/
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public function groupBy($groupBy, $preserveKeys = false)
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{
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if (! $this->useAsCallable($groupBy) && is_array($groupBy)) {
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$nextGroups = $groupBy;
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$groupBy = array_shift($nextGroups);
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}
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$groupBy = $this->valueRetriever($groupBy);
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$results = [];
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foreach ($this->items as $key => $value) {
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$groupKeys = $groupBy($value, $key);
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if (! is_array($groupKeys)) {
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$groupKeys = [$groupKeys];
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}
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foreach ($groupKeys as $groupKey) {
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$groupKey = is_bool($groupKey) ? (int) $groupKey : $groupKey;
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if (! array_key_exists($groupKey, $results)) {
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$results[$groupKey] = new static;
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}
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$results[$groupKey]->offsetSet($preserveKeys ? $key : null, $value);
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}
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}
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$result = new static($results);
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if (! empty($nextGroups)) {
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return $result->map->groupBy($nextGroups, $preserveKeys);
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}
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return $result;
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}
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/**
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* Key an associative array by a field or using a callback.
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*
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* @param callable|string $keyBy
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* @return static
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*/
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public function keyBy($keyBy)
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{
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$keyBy = $this->valueRetriever($keyBy);
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$results = [];
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foreach ($this->items as $key => $item) {
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$resolvedKey = $keyBy($item, $key);
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if (is_object($resolvedKey)) {
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$resolvedKey = (string) $resolvedKey;
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}
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$results[$resolvedKey] = $item;
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}
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return new static($results);
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}
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/**
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* Determine if an item exists in the collection by key.
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*
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* @param mixed $key
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* @return bool
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*/
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public function has($key)
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{
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$keys = is_array($key) ? $key : func_get_args();
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foreach ($keys as $value) {
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if (! $this->offsetExists($value)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Concatenate values of a given key as a string.
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*
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* @param string $value
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* @param string|null $glue
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* @return string
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*/
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public function implode($value, $glue = null)
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{
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$first = $this->first();
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if (is_array($first) || is_object($first)) {
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return implode($glue, $this->pluck($value)->all());
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}
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return implode($value, $this->items);
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}
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/**
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* Intersect the collection with the given items.
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*
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* @param mixed $items
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* @return static
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*/
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public function intersect($items)
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{
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return new static(array_intersect($this->items, $this->getArrayableItems($items)));
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}
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/**
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* Intersect the collection with the given items by key.
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*
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* @param mixed $items
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* @return static
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*/
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public function intersectByKeys($items)
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{
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return new static(array_intersect_key(
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$this->items, $this->getArrayableItems($items)
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));
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}
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/**
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* Determine if the collection is empty or not.
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*
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* @return bool
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*/
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public function isEmpty()
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{
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return empty($this->items);
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}
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/**
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* Join all items from the collection using a string. The final items can use a separate glue string.
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*
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* @param string $glue
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* @param string $finalGlue
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* @return string
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*/
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public function join($glue, $finalGlue = '')
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{
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if ($finalGlue === '') {
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return $this->implode($glue);
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}
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$count = $this->count();
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if ($count === 0) {
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return '';
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}
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if ($count === 1) {
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return $this->last();
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}
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$collection = new static($this->items);
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$finalItem = $collection->pop();
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return $collection->implode($glue).$finalGlue.$finalItem;
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}
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/**
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* Get the keys of the collection items.
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*
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* @return static
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*/
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public function keys()
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{
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return new static(array_keys($this->items));
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}
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/**
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* Get the last item from the collection.
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*
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* @param callable|null $callback
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* @param mixed $default
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* @return mixed
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*/
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public function last(callable $callback = null, $default = null)
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{
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return Arr::last($this->items, $callback, $default);
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}
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|
|
/**
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* Get the values of a given key.
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*
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* @param string|array $value
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* @param string|null $key
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* @return static
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*/
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public function pluck($value, $key = null)
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{
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return new static(Arr::pluck($this->items, $value, $key));
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}
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|
|
/**
|
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* Run a map over each of the items.
|
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*
|
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* @param callable $callback
|
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* @return static
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*/
|
|
public function map(callable $callback)
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{
|
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$keys = array_keys($this->items);
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|
|
$items = array_map($callback, $this->items, $keys);
|
|
|
|
return new static(array_combine($keys, $items));
|
|
}
|
|
|
|
/**
|
|
* Run a dictionary map over the items.
|
|
*
|
|
* The callback should return an associative array with a single key/value pair.
|
|
*
|
|
* @param callable $callback
|
|
* @return static
|
|
*/
|
|
public function mapToDictionary(callable $callback)
|
|
{
|
|
$dictionary = [];
|
|
|
|
foreach ($this->items as $key => $item) {
|
|
$pair = $callback($item, $key);
|
|
|
|
$key = key($pair);
|
|
|
|
$value = reset($pair);
|
|
|
|
if (! isset($dictionary[$key])) {
|
|
$dictionary[$key] = [];
|
|
}
|
|
|
|
$dictionary[$key][] = $value;
|
|
}
|
|
|
|
return new static($dictionary);
|
|
}
|
|
|
|
/**
|
|
* Run an associative map over each of the items.
|
|
*
|
|
* The callback should return an associative array with a single key/value pair.
|
|
*
|
|
* @param callable $callback
|
|
* @return static
|
|
*/
|
|
public function mapWithKeys(callable $callback)
|
|
{
|
|
$result = [];
|
|
|
|
foreach ($this->items as $key => $value) {
|
|
$assoc = $callback($value, $key);
|
|
|
|
foreach ($assoc as $mapKey => $mapValue) {
|
|
$result[$mapKey] = $mapValue;
|
|
}
|
|
}
|
|
|
|
return new static($result);
|
|
}
|
|
|
|
/**
|
|
* Merge the collection with the given items.
|
|
*
|
|
* @param mixed $items
|
|
* @return static
|
|
*/
|
|
public function merge($items)
|
|
{
|
|
return new static(array_merge($this->items, $this->getArrayableItems($items)));
|
|
}
|
|
|
|
/**
|
|
* Recursively merge the collection with the given items.
|
|
*
|
|
* @param mixed $items
|
|
* @return static
|
|
*/
|
|
public function mergeRecursive($items)
|
|
{
|
|
return new static(array_merge_recursive($this->items, $this->getArrayableItems($items)));
|
|
}
|
|
|
|
/**
|
|
* Create a collection by using this collection for keys and another for its values.
|
|
*
|
|
* @param mixed $values
|
|
* @return static
|
|
*/
|
|
public function combine($values)
|
|
{
|
|
return new static(array_combine($this->all(), $this->getArrayableItems($values)));
|
|
}
|
|
|
|
/**
|
|
* Union the collection with the given items.
|
|
*
|
|
* @param mixed $items
|
|
* @return static
|
|
*/
|
|
public function union($items)
|
|
{
|
|
return new static($this->items + $this->getArrayableItems($items));
|
|
}
|
|
|
|
/**
|
|
* Create a new collection consisting of every n-th element.
|
|
*
|
|
* @param int $step
|
|
* @param int $offset
|
|
* @return static
|
|
*/
|
|
public function nth($step, $offset = 0)
|
|
{
|
|
$new = [];
|
|
|
|
$position = 0;
|
|
|
|
foreach ($this->items as $item) {
|
|
if ($position % $step === $offset) {
|
|
$new[] = $item;
|
|
}
|
|
|
|
$position++;
|
|
}
|
|
|
|
return new static($new);
|
|
}
|
|
|
|
/**
|
|
* Get the items with the specified keys.
|
|
*
|
|
* @param mixed $keys
|
|
* @return static
|
|
*/
|
|
public function only($keys)
|
|
{
|
|
if (is_null($keys)) {
|
|
return new static($this->items);
|
|
}
|
|
|
|
if ($keys instanceof Enumerable) {
|
|
$keys = $keys->all();
|
|
}
|
|
|
|
$keys = is_array($keys) ? $keys : func_get_args();
|
|
|
|
return new static(Arr::only($this->items, $keys));
|
|
}
|
|
|
|
/**
|
|
* Get and remove the last item from the collection.
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public function pop()
|
|
{
|
|
return array_pop($this->items);
|
|
}
|
|
|
|
/**
|
|
* Push an item onto the beginning of the collection.
|
|
*
|
|
* @param mixed $value
|
|
* @param mixed $key
|
|
* @return $this
|
|
*/
|
|
public function prepend($value, $key = null)
|
|
{
|
|
$this->items = Arr::prepend($this->items, $value, $key);
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Push one or more items onto the end of the collection.
|
|
*
|
|
* @param mixed $values
|
|
* @return $this
|
|
*/
|
|
public function push(...$values)
|
|
{
|
|
foreach ($values as $value) {
|
|
$this->items[] = $value;
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Push all of the given items onto the collection.
|
|
*
|
|
* @param iterable $source
|
|
* @return static
|
|
*/
|
|
public function concat($source)
|
|
{
|
|
$result = new static($this);
|
|
|
|
foreach ($source as $item) {
|
|
$result->push($item);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Get and remove an item from the collection.
|
|
*
|
|
* @param mixed $key
|
|
* @param mixed $default
|
|
* @return mixed
|
|
*/
|
|
public function pull($key, $default = null)
|
|
{
|
|
return Arr::pull($this->items, $key, $default);
|
|
}
|
|
|
|
/**
|
|
* Put an item in the collection by key.
|
|
*
|
|
* @param mixed $key
|
|
* @param mixed $value
|
|
* @return $this
|
|
*/
|
|
public function put($key, $value)
|
|
{
|
|
$this->offsetSet($key, $value);
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get one or a specified number of items randomly from the collection.
|
|
*
|
|
* @param int|null $number
|
|
* @return static|mixed
|
|
*
|
|
* @throws \InvalidArgumentException
|
|
*/
|
|
public function random($number = null)
|
|
{
|
|
if (is_null($number)) {
|
|
return Arr::random($this->items);
|
|
}
|
|
|
|
return new static(Arr::random($this->items, $number));
|
|
}
|
|
|
|
/**
|
|
* Reduce the collection to a single value.
|
|
*
|
|
* @param callable $callback
|
|
* @param mixed $initial
|
|
* @return mixed
|
|
*/
|
|
public function reduce(callable $callback, $initial = null)
|
|
{
|
|
return array_reduce($this->items, $callback, $initial);
|
|
}
|
|
|
|
/**
|
|
* Replace the collection items with the given items.
|
|
*
|
|
* @param mixed $items
|
|
* @return static
|
|
*/
|
|
public function replace($items)
|
|
{
|
|
return new static(array_replace($this->items, $this->getArrayableItems($items)));
|
|
}
|
|
|
|
/**
|
|
* Recursively replace the collection items with the given items.
|
|
*
|
|
* @param mixed $items
|
|
* @return static
|
|
*/
|
|
public function replaceRecursive($items)
|
|
{
|
|
return new static(array_replace_recursive($this->items, $this->getArrayableItems($items)));
|
|
}
|
|
|
|
/**
|
|
* Reverse items order.
|
|
*
|
|
* @return static
|
|
*/
|
|
public function reverse()
|
|
{
|
|
return new static(array_reverse($this->items, true));
|
|
}
|
|
|
|
/**
|
|
* Search the collection for a given value and return the corresponding key if successful.
|
|
*
|
|
* @param mixed $value
|
|
* @param bool $strict
|
|
* @return mixed
|
|
*/
|
|
public function search($value, $strict = false)
|
|
{
|
|
if (! $this->useAsCallable($value)) {
|
|
return array_search($value, $this->items, $strict);
|
|
}
|
|
|
|
foreach ($this->items as $key => $item) {
|
|
if ($value($item, $key)) {
|
|
return $key;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get and remove the first item from the collection.
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public function shift()
|
|
{
|
|
return array_shift($this->items);
|
|
}
|
|
|
|
/**
|
|
* Shuffle the items in the collection.
|
|
*
|
|
* @param int|null $seed
|
|
* @return static
|
|
*/
|
|
public function shuffle($seed = null)
|
|
{
|
|
return new static(Arr::shuffle($this->items, $seed));
|
|
}
|
|
|
|
/**
|
|
* Skip the first {$count} items.
|
|
*
|
|
* @param int $count
|
|
* @return static
|
|
*/
|
|
public function skip($count)
|
|
{
|
|
return $this->slice($count);
|
|
}
|
|
|
|
/**
|
|
* Skip items in the collection until the given condition is met.
|
|
*
|
|
* @param mixed $value
|
|
* @return static
|
|
*/
|
|
public function skipUntil($value)
|
|
{
|
|
return new static($this->lazy()->skipUntil($value)->all());
|
|
}
|
|
|
|
/**
|
|
* Skip items in the collection while the given condition is met.
|
|
*
|
|
* @param mixed $value
|
|
* @return static
|
|
*/
|
|
public function skipWhile($value)
|
|
{
|
|
return new static($this->lazy()->skipWhile($value)->all());
|
|
}
|
|
|
|
/**
|
|
* Slice the underlying collection array.
|
|
*
|
|
* @param int $offset
|
|
* @param int|null $length
|
|
* @return static
|
|
*/
|
|
public function slice($offset, $length = null)
|
|
{
|
|
return new static(array_slice($this->items, $offset, $length, true));
|
|
}
|
|
|
|
/**
|
|
* Split a collection into a certain number of groups.
|
|
*
|
|
* @param int $numberOfGroups
|
|
* @return static
|
|
*/
|
|
public function split($numberOfGroups)
|
|
{
|
|
if ($this->isEmpty()) {
|
|
return new static;
|
|
}
|
|
|
|
$groups = new static;
|
|
|
|
$groupSize = floor($this->count() / $numberOfGroups);
|
|
|
|
$remain = $this->count() % $numberOfGroups;
|
|
|
|
$start = 0;
|
|
|
|
for ($i = 0; $i < $numberOfGroups; $i++) {
|
|
$size = $groupSize;
|
|
|
|
if ($i < $remain) {
|
|
$size++;
|
|
}
|
|
|
|
if ($size) {
|
|
$groups->push(new static(array_slice($this->items, $start, $size)));
|
|
|
|
$start += $size;
|
|
}
|
|
}
|
|
|
|
return $groups;
|
|
}
|
|
|
|
/**
|
|
* Chunk the collection into chunks of the given size.
|
|
*
|
|
* @param int $size
|
|
* @return static
|
|
*/
|
|
public function chunk($size)
|
|
{
|
|
if ($size <= 0) {
|
|
return new static;
|
|
}
|
|
|
|
$chunks = [];
|
|
|
|
foreach (array_chunk($this->items, $size, true) as $chunk) {
|
|
$chunks[] = new static($chunk);
|
|
}
|
|
|
|
return new static($chunks);
|
|
}
|
|
|
|
/**
|
|
* Sort through each item with a callback.
|
|
*
|
|
* @param callable|int|null $callback
|
|
* @return static
|
|
*/
|
|
public function sort($callback = null)
|
|
{
|
|
$items = $this->items;
|
|
|
|
$callback && is_callable($callback)
|
|
? uasort($items, $callback)
|
|
: asort($items, $callback);
|
|
|
|
return new static($items);
|
|
}
|
|
|
|
/**
|
|
* Sort items in descending order.
|
|
*
|
|
* @param int $options
|
|
* @return static
|
|
*/
|
|
public function sortDesc($options = SORT_REGULAR)
|
|
{
|
|
$items = $this->items;
|
|
|
|
arsort($items, $options);
|
|
|
|
return new static($items);
|
|
}
|
|
|
|
/**
|
|
* Sort the collection using the given callback.
|
|
*
|
|
* @param callable|string $callback
|
|
* @param int $options
|
|
* @param bool $descending
|
|
* @return static
|
|
*/
|
|
public function sortBy($callback, $options = SORT_REGULAR, $descending = false)
|
|
{
|
|
$results = [];
|
|
|
|
$callback = $this->valueRetriever($callback);
|
|
|
|
// First we will loop through the items and get the comparator from a callback
|
|
// function which we were given. Then, we will sort the returned values and
|
|
// and grab the corresponding values for the sorted keys from this array.
|
|
foreach ($this->items as $key => $value) {
|
|
$results[$key] = $callback($value, $key);
|
|
}
|
|
|
|
$descending ? arsort($results, $options)
|
|
: asort($results, $options);
|
|
|
|
// Once we have sorted all of the keys in the array, we will loop through them
|
|
// and grab the corresponding model so we can set the underlying items list
|
|
// to the sorted version. Then we'll just return the collection instance.
|
|
foreach (array_keys($results) as $key) {
|
|
$results[$key] = $this->items[$key];
|
|
}
|
|
|
|
return new static($results);
|
|
}
|
|
|
|
/**
|
|
* Sort the collection in descending order using the given callback.
|
|
*
|
|
* @param callable|string $callback
|
|
* @param int $options
|
|
* @return static
|
|
*/
|
|
public function sortByDesc($callback, $options = SORT_REGULAR)
|
|
{
|
|
return $this->sortBy($callback, $options, true);
|
|
}
|
|
|
|
/**
|
|
* Sort the collection keys.
|
|
*
|
|
* @param int $options
|
|
* @param bool $descending
|
|
* @return static
|
|
*/
|
|
public function sortKeys($options = SORT_REGULAR, $descending = false)
|
|
{
|
|
$items = $this->items;
|
|
|
|
$descending ? krsort($items, $options) : ksort($items, $options);
|
|
|
|
return new static($items);
|
|
}
|
|
|
|
/**
|
|
* Sort the collection keys in descending order.
|
|
*
|
|
* @param int $options
|
|
* @return static
|
|
*/
|
|
public function sortKeysDesc($options = SORT_REGULAR)
|
|
{
|
|
return $this->sortKeys($options, true);
|
|
}
|
|
|
|
/**
|
|
* Splice a portion of the underlying collection array.
|
|
*
|
|
* @param int $offset
|
|
* @param int|null $length
|
|
* @param mixed $replacement
|
|
* @return static
|
|
*/
|
|
public function splice($offset, $length = null, $replacement = [])
|
|
{
|
|
if (func_num_args() === 1) {
|
|
return new static(array_splice($this->items, $offset));
|
|
}
|
|
|
|
return new static(array_splice($this->items, $offset, $length, $replacement));
|
|
}
|
|
|
|
/**
|
|
* Take the first or last {$limit} items.
|
|
*
|
|
* @param int $limit
|
|
* @return static
|
|
*/
|
|
public function take($limit)
|
|
{
|
|
if ($limit < 0) {
|
|
return $this->slice($limit, abs($limit));
|
|
}
|
|
|
|
return $this->slice(0, $limit);
|
|
}
|
|
|
|
/**
|
|
* Take items in the collection until the given condition is met.
|
|
*
|
|
* @param mixed $value
|
|
* @return static
|
|
*/
|
|
public function takeUntil($value)
|
|
{
|
|
return new static($this->lazy()->takeUntil($value)->all());
|
|
}
|
|
|
|
/**
|
|
* Take items in the collection while the given condition is met.
|
|
*
|
|
* @param mixed $value
|
|
* @return static
|
|
*/
|
|
public function takeWhile($value)
|
|
{
|
|
return new static($this->lazy()->takeWhile($value)->all());
|
|
}
|
|
|
|
/**
|
|
* Transform each item in the collection using a callback.
|
|
*
|
|
* @param callable $callback
|
|
* @return $this
|
|
*/
|
|
public function transform(callable $callback)
|
|
{
|
|
$this->items = $this->map($callback)->all();
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Reset the keys on the underlying array.
|
|
*
|
|
* @return static
|
|
*/
|
|
public function values()
|
|
{
|
|
return new static(array_values($this->items));
|
|
}
|
|
|
|
/**
|
|
* Zip the collection together with one or more arrays.
|
|
*
|
|
* e.g. new Collection([1, 2, 3])->zip([4, 5, 6]);
|
|
* => [[1, 4], [2, 5], [3, 6]]
|
|
*
|
|
* @param mixed ...$items
|
|
* @return static
|
|
*/
|
|
public function zip($items)
|
|
{
|
|
$arrayableItems = array_map(function ($items) {
|
|
return $this->getArrayableItems($items);
|
|
}, func_get_args());
|
|
|
|
$params = array_merge([function () {
|
|
return new static(func_get_args());
|
|
}, $this->items], $arrayableItems);
|
|
|
|
return new static(array_map(...$params));
|
|
}
|
|
|
|
/**
|
|
* Pad collection to the specified length with a value.
|
|
*
|
|
* @param int $size
|
|
* @param mixed $value
|
|
* @return static
|
|
*/
|
|
public function pad($size, $value)
|
|
{
|
|
return new static(array_pad($this->items, $size, $value));
|
|
}
|
|
|
|
/**
|
|
* Get an iterator for the items.
|
|
*
|
|
* @return \ArrayIterator
|
|
*/
|
|
public function getIterator()
|
|
{
|
|
return new ArrayIterator($this->items);
|
|
}
|
|
|
|
/**
|
|
* Count the number of items in the collection.
|
|
*
|
|
* @return int
|
|
*/
|
|
public function count()
|
|
{
|
|
return count($this->items);
|
|
}
|
|
|
|
/**
|
|
* Count the number of items in the collection by a field or using a callback.
|
|
*
|
|
* @param callable|string $countBy
|
|
* @return static
|
|
*/
|
|
public function countBy($countBy = null)
|
|
{
|
|
return new static($this->lazy()->countBy($countBy)->all());
|
|
}
|
|
|
|
/**
|
|
* Add an item to the collection.
|
|
*
|
|
* @param mixed $item
|
|
* @return $this
|
|
*/
|
|
public function add($item)
|
|
{
|
|
$this->items[] = $item;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get a base Support collection instance from this collection.
|
|
*
|
|
* @return \Illuminate\Support\Collection
|
|
*/
|
|
public function toBase()
|
|
{
|
|
return new self($this);
|
|
}
|
|
|
|
/**
|
|
* Determine if an item exists at an offset.
|
|
*
|
|
* @param mixed $key
|
|
* @return bool
|
|
*/
|
|
public function offsetExists($key)
|
|
{
|
|
return array_key_exists($key, $this->items);
|
|
}
|
|
|
|
/**
|
|
* Get an item at a given offset.
|
|
*
|
|
* @param mixed $key
|
|
* @return mixed
|
|
*/
|
|
public function offsetGet($key)
|
|
{
|
|
return $this->items[$key];
|
|
}
|
|
|
|
/**
|
|
* Set the item at a given offset.
|
|
*
|
|
* @param mixed $key
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function offsetSet($key, $value)
|
|
{
|
|
if (is_null($key)) {
|
|
$this->items[] = $value;
|
|
} else {
|
|
$this->items[$key] = $value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unset the item at a given offset.
|
|
*
|
|
* @param string $key
|
|
* @return void
|
|
*/
|
|
public function offsetUnset($key)
|
|
{
|
|
unset($this->items[$key]);
|
|
}
|
|
}
|