note 116269 added to function.array-diff

The difference is made only on the first level. If you want compare 2 arrays, you can use the code available at https://gist.github.com/wrey75/c631f6fe9c975354aec7 (including a class with an function to patch the array) Here the basic function: function my_array_diff($arr1, $arr2) { $diff = array(); // Check the similarities foreach( $arr1 as $k1=>$v1 ){ if( isset( $arr2[$k1]) ){ $v2 = $arr2[$k1]; if( is_array($v1) && is_array($v2) ){ // 2 arrays: just go further... // .. and explain it's an update! $changes = self::diff($v1, $v2); if( count($changes) > 0 ){ // If we have no change, simply ignore $diff[$k1] = array('upd' => $changes); } unset($arr2[$k1]); // don't forget } else if( $v2 === $v1 ){ // unset the value on the second array // for the "surplus" unset( $arr2[$k1] ); } else { // Don't mind if arrays or not. $diff[$k1] = array( 'old' => $v1, 'new'=>$v2 ); unset( $arr2[$k1] ); } } else { // remove information $diff[$k1] = array( 'old' => $v1 ); } } // Now, check for new stuff in $arr2 reset( $arr2 ); // Don't argue it's unnecessary (even I believe you) foreach( $arr2 as $k=>$v ){ // OK, it is quite stupid my friend $diff[$k] = array( 'new' => $v ); } return $diff; } ---- Server IP: 72.52.91.14 Probable Submitter: 37.160.156.51 ---- Manual Page -- http://php.net/manual/en/function.array-diff.php Edit -- https://master.php.net/note/edit/116269 Del: integrated -- https://master.php.net/note/delete/116269/integrated Del: useless -- https://master.php.net/note/delete/116269/useless Del: bad code -- https://master.php.net/note/delete/116269/bad+code Del: spam -- https://master.php.net/note/delete/116269/spam Del: non-english -- https://master.php.net/note/delete/116269/non-english Del: in docs -- https://master.php.net/note/delete/116269/in+docs Del: other reasons-- https://master.php.net/note/delete/116269 Reject -- https://master.php.net/note/reject/116269 Search -- https://master.php.net/manage/user-notes.php