Online PHP editor | output for Irj1m

<?php $ajaxData = array("phase-5[]" => array( '0' => "Admin Phase 1 Task 1", '1' => "Admin Phase 1 Task 2" ),"phase-6[]" => array( '0' => "Admin Phase 2 Task 1", '1' => "Admin Phase 2 Task 2", '2' => "Admin Phase 2 Task 3" ),"phase-7[]" => array( '0' => "Admin Phase 3 Task 1", '1' => "Admin Phase 3 Task 2", '2' => "Admin Phase 3 Task 3" ) ); $dbData = array("phase-5[]" => array( '0' => "Admin Phase 1 Task 1", '1' => "Admin Phase 1 Task 2" ),"phase-6[]" => array( '0' => "Admin Phase 2 Task 1", '1' => "Admin Phase 2 Task 2" ),"phase-7[]" => array( '0' => "Admin Phase 3 Task 1", '1' => "Admin Phase 3 Task 2" ) ); function array_diff_assoc_recursive($array1, $array2) { foreach($array1 as $key => $value) { if(is_array($value)) { if(!isset($array2[$key])) { $difference[$key] = $value; } elseif(!is_array($array2[$key])) { $difference[$key] = $value; } else { $new_diff = array_diff_assoc_recursive($value, $array2[$key]); if($new_diff != FALSE) { $difference[$key] = $new_diff; } } } elseif(!isset($array2[$key]) || $array2[$key] != $value) { $difference[$key] = $value; } } return !isset($difference) ? 0 : $difference; } var_dump( array_diff_assoc_recursive( $ajaxData, $dbData) );