Online PHP editor | refs for 6PCaE

<?php $ar = []; $ar['ar0']['y'] = 'Yes'; $ar['ar0']['n'] = 'No'; $ar['ar1']['g'] = 'good'; $ar['ar1']['b'] = 'bad'; $ar['ar2']['m'] = 'mom'; $ar['ar2']['d'] = 'dad'; $ar['ar4']['y'] = 'Yes'; $ar['ar4']['n'] = 'No'; print_r($ar); $res_ar = []; // resultant array function getArrayByKey($needle, $haystack) { foreach ($haystack as $arr) { if (in_array($needle, $arr)) { return $arr; } } return []; } $res_ar = getArrayByKey('Yes', $ar); print_r($res_ar);