php recursive search multidimensional array for value and return key sequences

php-multidimensional-array-search-return-keys.php

<?php
namespace common\helpers;
class ArrayHelper extends \yii\helpers\ArrayHelper
{
    public static function multiSearch($needle, $haystack, $options = ['strict' => false, 'yiiFormat' => false])
	{

		$iterator = new \RecursiveIteratorIterator(new \RecursiveArrayIterator([$haystack]));
		// parent array is skipped in subiterators, so we wrap the argument in one more array
		$results = [];

		foreach ($iterator as $key => $value) {
			if($options['strict']?($value === $needle):($value == $needle)) {
				$keys = [];
				for ($i = $iterator->getDepth()-1; $i > 0; $i--) {
					$keys[] = $iterator->getSubIterator($i)->key();
				}
				$keys[] = $key;

				$results[] = $keys;
			}
		}

		if($options['yiiFormat']){
			foreach($results as $k=>$v){
				$results[$k] = implode('.',$v);
			}
		}

		return $results;
	}
}

You saved me some time. Thanks mate :)

Thanks!