3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('foo' => 123, 'bar' => true, 987 => 'test', '0' => 'blah', 'baz' => 'blah') ; $needle = 'bar'; echo array_search(array_search($needle,$array),array_keys($array));

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37.97 ms | 402 KiB | 5 Q