3v4l.org

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<?php $array = ['oooo', 'no', 'mmmm', 'yes']; $needle = 'Yes'; echo (function($haystack, $needle) { foreach ($haystack as $i => $v) { if (stripos($v, $needle) !== false) { return $i; } } return null; })($array, $needle) ?? 'Not found';
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
3

preferences:
55.07 ms | 402 KiB | 62 Q