note 115634 added to function.array-diff-assoc

to chinello at gmail dot com I've had to use your function but it showed that the use of isset can't differentiate the NULL values from not setted values. Here's a version that takes care of this subtility. <?php function array_diff_assoc_recursive($array1, $array2) { $difference = NULL; foreach($array1 as $key => $value) { if(is_array($value)) { if(!array_key_exists($key, $array2)) { $difference[$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] = $new_diff; } } } elseif(!array_key_exists($key, $array2) || $array2[$key] != $value) { $difference[$key] = $value; } } return !isset($difference) ? 0 : $difference; } ?> Hope that helps François ---- Server IP: 72.52.91.14 Probable Submitter: 2a01:e35:2e87:32f0:6a5d:43ff:fe58:e238 ---- Manual Page -- http://php.net/manual/en/function.array-diff-assoc.php Edit -- https://master.php.net/note/edit/115634 Del: integrated -- https://master.php.net/note/delete/115634/integrated Del: useless -- https://master.php.net/note/delete/115634/useless Del: bad code -- https://master.php.net/note/delete/115634/bad+code Del: spam -- https://master.php.net/note/delete/115634/spam Del: non-english -- https://master.php.net/note/delete/115634/non-english Del: in docs -- https://master.php.net/note/delete/115634/in+docs Del: other reasons-- https://master.php.net/note/delete/115634 Reject -- https://master.php.net/note/reject/115634 Search -- https://master.php.net/manage/user-notes.php