3v4l.org

run code in 300+ PHP versions simultaneously
<?php $search = "uma palavra qualquer"; $retorno = array_keys( array_filter( $meuArrayMultidimensional, function ($value) use ($search) { return (stripos($value['colunaDoArray'], $search) !== false); } ) );

preferences:
62.19 ms | 402 KiB | 5 Q