79 lines
2.2 KiB
PHP
79 lines
2.2 KiB
PHP
<?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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abstract public function find(mixed ...$arguments);
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abstract public function findLast(mixed ...$arguments);
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/**
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* Returns the index of the given element or null if the element can't be found
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*
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* @param mixed $element
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*
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* @return int|string|null the index for the given element
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*/
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public function indexOf(mixed $element): int|string|null {
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$out = array_search($element, $this->array, true);
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return $out === false ? 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 $arguments
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*
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* @return int|string|null the index or null if it hasn't been found
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*/
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public function findLastIndex(mixed ...$arguments): int|string|null {
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/** @var mixed $index */
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$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 $arguments
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*
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* @return int|string|null the index or null if it hasn't been found
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*/
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public function findIndex(mixed ...$arguments): int|string|null {
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/** @var mixed $index */
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$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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