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<?phpnamespace Illuminate\Support;use ArrayAccess;use ArrayIterator;use Illuminate\Contracts\Support\CanBeEscapedWhenCastToString;use Illuminate\Support\Traits\EnumeratesValues;use Illuminate\Support\Traits\Macroable;use stdClass;use Traversable;/*** @template TKey of array-key* @template TValue** @implements \ArrayAccess<TKey, TValue>* @implements \Illuminate\Support\Enumerable<TKey, TValue>*/class Collection implements ArrayAccess, CanBeEscapedWhenCastToString, Enumerable{/*** @use \Illuminate\Support\Traits\EnumeratesValues<TKey, TValue>*/use EnumeratesValues, Macroable;/*** The items contained in the collection.** @var array<TKey, TValue>*/protected $items = [];/*** Create a new collection.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue>|null $items* @return void*/public function __construct($items = []){$this->items = $this->getArrayableItems($items);}/*** Create a collection with the given range.** @param int $from* @param int $to* @return static<int, int>*/public static function range($from, $to){return new static(range($from, $to));}/*** Get all of the items in the collection.** @return array<TKey, TValue>*/public function all(){return $this->items;}/*** Get a lazy collection for the items in this collection.** @return \Illuminate\Support\LazyCollection<TKey, TValue>*/public function lazy(){return new LazyCollection($this->items);}/*** Get the average value of a given key.** @param (callable(TValue): float|int)|string|null $callback* @return float|int|null*/public function avg($callback = null){$callback = $this->valueRetriever($callback);$items = $this->map(fn ($value) => $callback($value))->filter(fn ($value) => ! is_null($value));if ($count = $items->count()) {return $items->sum() / $count;}}/*** Get the median of a given key.** @param string|array<array-key, string>|null $key* @return float|int|null*/public function median($key = null){$values = (isset($key) ? $this->pluck($key) : $this)->filter(fn ($item) => ! is_null($item))->sort()->values();$count = $values->count();if ($count === 0) {return;}$middle = (int) ($count / 2);if ($count % 2) {return $values->get($middle);}return (new static([$values->get($middle - 1), $values->get($middle),]))->average();}/*** Get the mode of a given key.** @param string|array<array-key, string>|null $key* @return array<int, float|int>|null*/public function mode($key = null){if ($this->count() === 0) {return;}$collection = isset($key) ? $this->pluck($key) : $this;$counts = new static;$collection->each(fn ($value) => $counts[$value] = isset($counts[$value]) ? $counts[$value] + 1 : 1);$sorted = $counts->sort();$highestValue = $sorted->last();return $sorted->filter(fn ($value) => $value == $highestValue)->sort()->keys()->all();}/*** Collapse the collection of items into a single array.** @return static<int, mixed>*/public function collapse(){return new static(Arr::collapse($this->items));}/*** Determine if an item exists in the collection.** @param (callable(TValue, TKey): bool)|TValue|string $key* @param mixed $operator* @param mixed $value* @return bool*/public function contains($key, $operator = null, $value = null){if (func_num_args() === 1) {if ($this->useAsCallable($key)) {$placeholder = new stdClass;return $this->first($key, $placeholder) !== $placeholder;}return in_array($key, $this->items);}return $this->contains($this->operatorForWhere(...func_get_args()));}/*** Determine if an item exists, using strict comparison.** @param (callable(TValue): bool)|TValue|array-key $key* @param TValue|null $value* @return bool*/public function containsStrict($key, $value = null){if (func_num_args() === 2) {return $this->contains(fn ($item) => data_get($item, $key) === $value);}if ($this->useAsCallable($key)) {return ! is_null($this->first($key));}return in_array($key, $this->items, true);}/*** Determine if an item is not contained in the collection.** @param mixed $key* @param mixed $operator* @param mixed $value* @return bool*/public function doesntContain($key, $operator = null, $value = null){return ! $this->contains(...func_get_args());}/*** Cross join with the given lists, returning all possible permutations.** @template TCrossJoinKey* @template TCrossJoinValue** @param \Illuminate\Contracts\Support\Arrayable<TCrossJoinKey, TCrossJoinValue>|iterable<TCrossJoinKey, TCrossJoinValue> ...$lists* @return static<int, array<int, TValue|TCrossJoinValue>>*/public function crossJoin(...$lists){return new static(Arr::crossJoin($this->items, ...array_map([$this, 'getArrayableItems'], $lists)));}/*** Get the items in the collection that are not present in the given items.** @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items* @return static*/public function diff($items){return new static(array_diff($this->items, $this->getArrayableItems($items)));}/*** Get the items in the collection that are not present in the given items, using the callback.** @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items* @param callable(TValue, TValue): int $callback* @return static*/public function diffUsing($items, callable $callback){return new static(array_udiff($this->items, $this->getArrayableItems($items), $callback));}/*** Get the items in the collection whose keys and values are not present in the given items.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function diffAssoc($items){return new static(array_diff_assoc($this->items, $this->getArrayableItems($items)));}/*** Get the items in the collection whose keys and values are not present in the given items, using the callback.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @param callable(TKey, TKey): int $callback* @return static*/public function diffAssocUsing($items, callable $callback){return new static(array_diff_uassoc($this->items, $this->getArrayableItems($items), $callback));}/*** Get the items in the collection whose keys are not present in the given items.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function diffKeys($items){return new static(array_diff_key($this->items, $this->getArrayableItems($items)));}/*** Get the items in the collection whose keys are not present in the given items, using the callback.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @param callable(TKey, TKey): int $callback* @return static*/public function diffKeysUsing($items, callable $callback){return new static(array_diff_ukey($this->items, $this->getArrayableItems($items), $callback));}/*** Retrieve duplicate items from the collection.** @param (callable(TValue): bool)|string|null $callback* @param bool $strict* @return static*/public function duplicates($callback = null, $strict = false){$items = $this->map($this->valueRetriever($callback));$uniqueItems = $items->unique(null, $strict);$compare = $this->duplicateComparator($strict);$duplicates = new static;foreach ($items as $key => $value) {if ($uniqueItems->isNotEmpty() && $compare($value, $uniqueItems->first())) {$uniqueItems->shift();} else {$duplicates[$key] = $value;}}return $duplicates;}/*** Retrieve duplicate items from the collection using strict comparison.** @param (callable(TValue): bool)|string|null $callback* @return static*/public function duplicatesStrict($callback = null){return $this->duplicates($callback, true);}/*** Get the comparison function to detect duplicates.** @param bool $strict* @return callable(TValue, TValue): bool*/protected function duplicateComparator($strict){if ($strict) {return fn ($a, $b) => $a === $b;}return fn ($a, $b) => $a == $b;}/*** Get all items except for those with the specified keys.** @param \Illuminate\Support\Enumerable<array-key, TKey>|array<array-key, TKey> $keys* @return static*/public function except($keys){if ($keys instanceof Enumerable) {$keys = $keys->all();} elseif (! is_array($keys)) {$keys = func_get_args();}return new static(Arr::except($this->items, $keys));}/*** Run a filter over each of the items.** @param (callable(TValue, TKey): bool)|null $callback* @return static*/public function filter(callable $callback = null){if ($callback) {return new static(Arr::where($this->items, $callback));}return new static(array_filter($this->items));}/*** Get the first item from the collection passing the given truth test.** @template TFirstDefault** @param (callable(TValue, TKey): bool)|null $callback* @param TFirstDefault|(\Closure(): TFirstDefault) $default* @return TValue|TFirstDefault*/public function first(callable $callback = null, $default = null){return Arr::first($this->items, $callback, $default);}/*** Get a flattened array of the items in the collection.** @param int $depth* @return static<int, mixed>*/public function flatten($depth = INF){return new static(Arr::flatten($this->items, $depth));}/*** Flip the items in the collection.** @return static<TValue, TKey>*/public function flip(){return new static(array_flip($this->items));}/*** Remove an item from the collection by key.** @param TKey|array<array-key, TKey> $keys* @return $this*/public function forget($keys){foreach ((array) $keys as $key) {$this->offsetUnset($key);}return $this;}/*** Get an item from the collection by key.** @template TGetDefault** @param TKey $key* @param TGetDefault|(\Closure(): TGetDefault) $default* @return TValue|TGetDefault*/public function get($key, $default = null){if (array_key_exists($key, $this->items)) {return $this->items[$key];}return value($default);}/*** Get an item from the collection by key or add it to collection if it does not exist.** @param mixed $key* @param mixed $value* @return mixed*/public function getOrPut($key, $value){if (array_key_exists($key, $this->items)) {return $this->items[$key];}$this->offsetSet($key, $value = value($value));return $value;}/*** Group an associative array by a field or using a callback.** @param (callable(TValue, TKey): array-key)|array|string $groupBy* @param bool $preserveKeys* @return static<array-key, static<array-key, TValue>>*/public function groupBy($groupBy, $preserveKeys = false){if (! $this->useAsCallable($groupBy) && is_array($groupBy)) {$nextGroups = $groupBy;$groupBy = array_shift($nextGroups);}$groupBy = $this->valueRetriever($groupBy);$results = [];foreach ($this->items as $key => $value) {$groupKeys = $groupBy($value, $key);if (! is_array($groupKeys)) {$groupKeys = [$groupKeys];}foreach ($groupKeys as $groupKey) {$groupKey = match (true) {is_bool($groupKey) => (int) $groupKey,$groupKey instanceof \Stringable => (string) $groupKey,default => $groupKey,};if (! array_key_exists($groupKey, $results)) {$results[$groupKey] = new static;}$results[$groupKey]->offsetSet($preserveKeys ? $key : null, $value);}}$result = new static($results);if (! empty($nextGroups)) {return $result->map->groupBy($nextGroups, $preserveKeys);}return $result;}/*** Key an associative array by a field or using a callback.** @param (callable(TValue, TKey): array-key)|array|string $keyBy* @return static<array-key, TValue>*/public function keyBy($keyBy){$keyBy = $this->valueRetriever($keyBy);$results = [];foreach ($this->items as $key => $item) {$resolvedKey = $keyBy($item, $key);if (is_object($resolvedKey)) {$resolvedKey = (string) $resolvedKey;}$results[$resolvedKey] = $item;}return new static($results);}/*** Determine if an item exists in the collection by key.** @param TKey|array<array-key, TKey> $key* @return bool*/public function has($key){$keys = is_array($key) ? $key : func_get_args();foreach ($keys as $value) {if (! array_key_exists($value, $this->items)) {return false;}}return true;}/*** Determine if any of the keys exist in the collection.** @param mixed $key* @return bool*/public function hasAny($key){if ($this->isEmpty()) {return false;}$keys = is_array($key) ? $key : func_get_args();foreach ($keys as $value) {if ($this->has($value)) {return true;}}return false;}/*** Concatenate values of a given key as a string.** @param callable|string $value* @param string|null $glue* @return string*/public function implode($value, $glue = null){if ($this->useAsCallable($value)) {return implode($glue ?? '', $this->map($value)->all());}$first = $this->first();if (is_array($first) || (is_object($first) && ! $first instanceof Stringable)) {return implode($glue ?? '', $this->pluck($value)->all());}return implode($value ?? '', $this->items);}/*** Intersect the collection with the given items.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function intersect($items){return new static(array_intersect($this->items, $this->getArrayableItems($items)));}/*** Intersect the collection with the given items, using the callback.** @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items* @param callable(TValue, TValue): int $callback* @return static*/public function intersectUsing($items, callable $callback){return new static(array_uintersect($this->items, $this->getArrayableItems($items), $callback));}/*** Intersect the collection with the given items with additional index check.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function intersectAssoc($items){return new static(array_intersect_assoc($this->items, $this->getArrayableItems($items)));}/*** Intersect the collection with the given items with additional index check, using the callback.** @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items* @param callable(TValue, TValue): int $callback* @return static*/public function intersectAssocUsing($items, callable $callback){return new static(array_intersect_uassoc($this->items, $this->getArrayableItems($items), $callback));}/*** Intersect the collection with the given items by key.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function intersectByKeys($items){return new static(array_intersect_key($this->items, $this->getArrayableItems($items)));}/*** Determine if the collection is empty or not.** @return bool*/public function isEmpty(){return empty($this->items);}/*** Determine if the collection contains a single item.** @return bool*/public function containsOneItem(){return $this->count() === 1;}/*** Join all items from the collection using a string. The final items can use a separate glue string.** @param string $glue* @param string $finalGlue* @return string*/public function join($glue, $finalGlue = ''){if ($finalGlue === '') {return $this->implode($glue);}$count = $this->count();if ($count === 0) {return '';}if ($count === 1) {return $this->last();}$collection = new static($this->items);$finalItem = $collection->pop();return $collection->implode($glue).$finalGlue.$finalItem;}/*** Get the keys of the collection items.** @return static<int, TKey>*/public function keys(){return new static(array_keys($this->items));}/*** Get the last item from the collection.** @template TLastDefault** @param (callable(TValue, TKey): bool)|null $callback* @param TLastDefault|(\Closure(): TLastDefault) $default* @return TValue|TLastDefault*/public function last(callable $callback = null, $default = null){return Arr::last($this->items, $callback, $default);}/*** Get the values of a given key.** @param string|int|array<array-key, string> $value* @param string|null $key* @return static<array-key, mixed>*/public function pluck($value, $key = null){return new static(Arr::pluck($this->items, $value, $key));}/*** Run a map over each of the items.** @template TMapValue** @param callable(TValue, TKey): TMapValue $callback* @return static<TKey, TMapValue>*/public function map(callable $callback){return new static(Arr::map($this->items, $callback));}/*** Run a dictionary map over the items.** The callback should return an associative array with a single key/value pair.** @template TMapToDictionaryKey of array-key* @template TMapToDictionaryValue** @param callable(TValue, TKey): array<TMapToDictionaryKey, TMapToDictionaryValue> $callback* @return static<TMapToDictionaryKey, array<int, TMapToDictionaryValue>>*/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.** @template TMapWithKeysKey of array-key* @template TMapWithKeysValue** @param callable(TValue, TKey): array<TMapWithKeysKey, TMapWithKeysValue> $callback* @return static<TMapWithKeysKey, TMapWithKeysValue>*/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 \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function merge($items){return new static(array_merge($this->items, $this->getArrayableItems($items)));}/*** Recursively merge the collection with the given items.** @template TMergeRecursiveValue** @param \Illuminate\Contracts\Support\Arrayable<TKey, TMergeRecursiveValue>|iterable<TKey, TMergeRecursiveValue> $items* @return static<TKey, TValue|TMergeRecursiveValue>*/public function mergeRecursive($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.** @template TCombineValue** @param \Illuminate\Contracts\Support\Arrayable<array-key, TCombineValue>|iterable<array-key, TCombineValue> $values* @return static<TValue, TCombineValue>*/public function combine($values){return new static(array_combine($this->all(), $this->getArrayableItems($values)));}/*** Union the collection with the given items.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function union($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->slice($offset)->items as $item) {if ($position % $step === 0) {$new[] = $item;}$position++;}return new static($new);}/*** Get the items with the specified keys.** @param \Illuminate\Support\Enumerable<array-key, TKey>|array<array-key, TKey>|string|null $keys* @return static*/public function only($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 N items from the collection.** @param int $count* @return static<int, TValue>|TValue|null*/public function pop($count = 1){if ($count === 1) {return array_pop($this->items);}if ($this->isEmpty()) {return new static;}$results = [];$collectionCount = $this->count();foreach (range(1, min($count, $collectionCount)) as $item) {array_push($results, array_pop($this->items));}return new static($results);}/*** Push an item onto the beginning of the collection.** @param TValue $value* @param TKey $key* @return $this*/public function prepend($value, $key = null){$this->items = Arr::prepend($this->items, ...func_get_args());return $this;}/*** Push one or more items onto the end of the collection.** @param TValue ...$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<array-key, TValue> $source* @return static*/public function concat($source){$result = new static($this);foreach ($source as $item) {$result->push($item);}return $result;}/*** Get and remove an item from the collection.** @template TPullDefault** @param TKey $key* @param TPullDefault|(\Closure(): TPullDefault) $default* @return TValue|TPullDefault*/public function pull($key, $default = null){return Arr::pull($this->items, $key, $default);}/*** Put an item in the collection by key.** @param TKey $key* @param TValue $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 (callable(self<TKey, TValue>): int)|int|null $number* @return static<int, TValue>|TValue** @throws \InvalidArgumentException*/public function random($number = null){if (is_null($number)) {return Arr::random($this->items);}if (is_callable($number)) {return new static(Arr::random($this->items, $number($this)));}return new static(Arr::random($this->items, $number));}/*** Replace the collection items with the given items.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function replace($items){return new static(array_replace($this->items, $this->getArrayableItems($items)));}/*** Recursively replace the collection items with the given items.** @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items* @return static*/public function replaceRecursive($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 TValue|(callable(TValue,TKey): bool) $value* @param bool $strict* @return TKey|bool*/public function search($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 N items from the collection.** @param int $count* @return static<int, TValue>|TValue|null*/public function shift($count = 1){if ($count === 1) {return array_shift($this->items);}if ($this->isEmpty()) {return new static;}$results = [];$collectionCount = $this->count();foreach (range(1, min($count, $collectionCount)) as $item) {array_push($results, array_shift($this->items));}return new static($results);}/*** 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));}/*** Create chunks representing a "sliding window" view of the items in the collection.** @param int $size* @param int $step* @return static<int, static>*/public function sliding($size = 2, $step = 1){$chunks = floor(($this->count() - $size) / $step) + 1;return static::times($chunks, function ($number) use ($size, $step) {return $this->slice(($number - 1) * $step, $size);});}/*** Skip the first {$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 TValue|callable(TValue,TKey): bool $value* @return static*/public function skipUntil($value){return new static($this->lazy()->skipUntil($value)->all());}/*** Skip items in the collection while the given condition is met.** @param TValue|callable(TValue,TKey): bool $value* @return static*/public function skipWhile($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 $numberOfGroups* @return static<int, static>*/public function split($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;}/*** Split a collection into a certain number of groups, and fill the first groups completely.** @param int $numberOfGroups* @return static<int, static>*/public function splitIn($numberOfGroups){return $this->chunk(ceil($this->count() / $numberOfGroups));}/*** Get the first item in the collection, but only if exactly one item exists. Otherwise, throw an exception.** @param (callable(TValue, TKey): bool)|string $key* @param mixed $operator* @param mixed $value* @return TValue** @throws \Illuminate\Support\ItemNotFoundException* @throws \Illuminate\Support\MultipleItemsFoundException*/public function sole($key = null, $operator = null, $value = null){$filter = func_num_args() > 1? $this->operatorForWhere(...func_get_args()): $key;$items = $this->unless($filter == null)->filter($filter);$count = $items->count();if ($count === 0) {throw new ItemNotFoundException;}if ($count > 1) {throw new MultipleItemsFoundException($count);}return $items->first();}/*** Get the first item in the collection but throw an exception if no matching items exist.** @param (callable(TValue, TKey): bool)|string $key* @param mixed $operator* @param mixed $value* @return TValue** @throws \Illuminate\Support\ItemNotFoundException*/public function firstOrFail($key = null, $operator = null, $value = null){$filter = func_num_args() > 1? $this->operatorForWhere(...func_get_args()): $key;$placeholder = new stdClass();$item = $this->first($filter, $placeholder);if ($item === $placeholder) {throw new ItemNotFoundException;}return $item;}/*** Chunk the collection into chunks of the given size.** @param int $size* @return static<int, static>*/public function chunk($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);}/*** Chunk the collection into chunks with a callback.** @param callable(TValue, TKey, static<int, TValue>): bool $callback* @return static<int, static<int, TValue>>*/public function chunkWhile(callable $callback){return new static($this->lazy()->chunkWhile($callback)->mapInto(static::class));}/*** Sort through each item with a callback.** @param (callable(TValue, TValue): int)|null|int $callback* @return static*/public function sort($callback = null){$items = $this->items;$callback && is_callable($callback)? uasort($items, $callback): asort($items, $callback ?? SORT_REGULAR);return new static($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 array<array-key, (callable(TValue, TValue): mixed)|(callable(TValue, TKey): mixed)|string|array{string, string}>|(callable(TValue, TKey): mixed)|string $callback* @param int $options* @param bool $descending* @return static*/public function sortBy($callback, $options = SORT_REGULAR, $descending = false){if (is_array($callback) && ! is_callable($callback)) {return $this->sortByMany($callback);}$results = [];$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// grab all 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 using multiple comparisons.** @param array<array-key, (callable(TValue, TValue): mixed)|(callable(TValue, TKey): mixed)|string|array{string, string}> $comparisons* @return static*/protected function sortByMany(array $comparisons = []){$items = $this->items;uasort($items, function ($a, $b) use ($comparisons) {foreach ($comparisons as $comparison) {$comparison = Arr::wrap($comparison);$prop = $comparison[0];$ascending = Arr::get($comparison, 1, true) === true ||Arr::get($comparison, 1, true) === 'asc';if (! is_string($prop) && is_callable($prop)) {$result = $prop($a, $b);} else {$values = [data_get($a, $prop), data_get($b, $prop)];if (! $ascending) {$values = array_reverse($values);}$result = $values[0] <=> $values[1];}if ($result === 0) {continue;}return $result;}});return new static($items);}/*** Sort the collection in descending order using the given callback.** @param array<array-key, (callable(TValue, TValue): mixed)|(callable(TValue, TKey): mixed)|string|array{string, string}>|(callable(TValue, TKey): mixed)|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);}/*** Sort the collection keys using a callback.** @param callable(TKey, TKey): int $callback* @return static*/public function sortKeysUsing(callable $callback){$items = $this->items;uksort($items, $callback);return new static($items);}/*** Splice a portion of the underlying collection array.** @param int $offset* @param int|null $length* @param array<array-key, TValue> $replacement* @return static*/public function splice($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, $this->getArrayableItems($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 TValue|callable(TValue,TKey): bool $value* @return static*/public function takeUntil($value){return new static($this->lazy()->takeUntil($value)->all());}/*** Take items in the collection while the given condition is met.** @param TValue|callable(TValue,TKey): bool $value* @return static*/public function takeWhile($value){return new static($this->lazy()->takeWhile($value)->all());}/*** Transform each item in the collection using a callback.** @param callable(TValue, TKey): TValue $callback* @return $this*/public function transform(callable $callback){$this->items = $this->map($callback)->all();return $this;}/*** Convert a flatten "dot" notation array into an expanded array.** @return static*/public function undot(){return new static(Arr::undot($this->all()));}/*** Return only unique items from the collection array.** @param (callable(TValue, TKey): mixed)|string|null $key* @param bool $strict* @return static*/public function unique($key = null, $strict = false){if (is_null($key) && $strict === false) {return new static(array_unique($this->items, SORT_REGULAR));}$callback = $this->valueRetriever($key);$exists = [];return $this->reject(function ($item, $key) use ($callback, $strict, &$exists) {if (in_array($id = $callback($item, $key), $exists, $strict)) {return true;}$exists[] = $id;});}/*** Reset the keys on the underlying array.** @return static<int, TValue>*/public function values(){return new static(array_values($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]]** @template TZipValue** @param \Illuminate\Contracts\Support\Arrayable<array-key, TZipValue>|iterable<array-key, TZipValue> ...$items* @return static<int, static<int, TValue|TZipValue>>*/public function zip($items){$arrayableItems = array_map(fn ($items) => $this->getArrayableItems($items), func_get_args());$params = array_merge([fn () => new static(func_get_args()), $this->items], $arrayableItems);return new static(array_map(...$params));}/*** Pad collection to the specified length with a value.** @template TPadValue** @param int $size* @param TPadValue $value* @return static<int, TValue|TPadValue>*/public function pad($size, $value){return new static(array_pad($this->items, $size, $value));}/*** Get an iterator for the items.** @return \ArrayIterator<TKey, TValue>*/public function getIterator(): Traversable{return new ArrayIterator($this->items);}/*** Count the number of items in the collection.** @return int*/public function count(): int{return count($this->items);}/*** Count the number of items in the collection by a field or using a callback.** @param (callable(TValue, TKey): array-key)|string|null $countBy* @return static<array-key, int>*/public function countBy($countBy = null){return new static($this->lazy()->countBy($countBy)->all());}/*** Add an item to the collection.** @param TValue $item* @return $this*/public function add($item){$this->items[] = $item;return $this;}/*** Get a base Support collection instance from this collection.** @return \Illuminate\Support\Collection<TKey, TValue>*/public function toBase(){return new self($this);}/*** Determine if an item exists at an offset.** @param TKey $key* @return bool*/public function offsetExists($key): bool{return isset($this->items[$key]);}/*** Get an item at a given offset.** @param TKey $key* @return TValue*/public function offsetGet($key): mixed{return $this->items[$key];}/*** Set the item at a given offset.** @param TKey|null $key* @param TValue $value* @return void*/public function offsetSet($key, $value): void{if (is_null($key)) {$this->items[] = $value;} else {$this->items[$key] = $value;}}/*** Unset the item at a given offset.** @param TKey $key* @return void*/public function offsetUnset($key): void{unset($this->items[$key]);}}