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<?php declare(strict_types=1); |
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/** |
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* This file is part of the Phootwork package. |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @license MIT License |
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* @copyright Thomas Gossmann |
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*/ |
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namespace phootwork\lang\parts; |
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trait IndexFindersPart { |
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/** |
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* Returns the index of the given element or false if the element can't be found |
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* |
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* @param mixed $element |
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* @return int the index for the given element |
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*/ |
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public function indexOf($element): ?int { |
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$out = array_search($element, $this->array, true); |
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return false === $out ? null : $out; |
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} |
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/** |
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* Searches the array with a given callback and returns the index for the last element if found. |
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* |
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* The callback function takes one or two parameters: |
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* |
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* function ($element [, $query]) {} |
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* |
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* The callback must return a boolean |
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* When it's passed, $query must be the first argument: |
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* |
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* - find($query, callback) |
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* - find(callback) |
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* |
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* @param array $arguments |
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* @return int|null the index or null if it hasn't been found |
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*/ |
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public function findLastIndex(...$arguments): ?int { |
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$index = count($arguments) === 1 ? |
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$this->findLast($arguments[0]) : $this->findLast($arguments[0], $arguments[1]); |
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return $this->indexOf($index); |
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} |
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/** |
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* Searches the array with a given callback and returns the index for the first element if found. |
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* |
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* The callback function takes one or two parameters: |
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* |
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* function ($element [, $query]) {} |
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* |
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* The callback must return a boolean |
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* When it's passed, $query must be the first argument: |
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* |
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* - find($query, callback) |
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* - find(callback) |
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* |
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* @param array $arguments |
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* @return int|null the index or null if it hasn't been found |
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*/ |
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public function findIndex(...$arguments): ?int { |
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$index = count($arguments) === 1 ? $this->find($arguments[0]) : $this->find($arguments[0], $arguments[1]); |
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return $this->indexOf($index); |
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} |
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} |
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phootwork /
phootwork
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