Online PHP editor | refs for m9M7d

<?php $arrayName1 = array( '0' => array('name' => 'steve' ,'age' =>51 ) , '1' => array('name' => 'john' ,'age' =>48 ) , ); $arrayName2 = array( '0' => array('name' => 'Steve' ,'place' =>'downtown' ), '1' => array('name' => 'John' ,'place' =>'New York' ), ); $names2 = array_map('strtolower', array_column($arrayName2, 'name')); $output = array(); foreach ($arrayName1 as $array) { $key = array_search($array['name'], $names2); if ($key !== false) { $output[] = $array + $arrayName2[$key]; } else { $output[] = $array; } } print_r($output);