note 52044 added to function.array-diff

Here is a few functions to do a fast diff between two arrays in a few lines. You can use it with other functions described in the function array_merge : array_merge_replace from an other user, and two functions using it : array_merge_diff and array_merge_diff_reverse. Note that the keys are preserved! <? // returns a two dimensions array with the deleted data // and the added data function array_diff_both($new,$old) { $del=array_diff_assoc($old,$new); $add=array_diff_assoc($new,$old); return $diff=array("del"=>$del, "add"=>$add); } // returns a two dimensions array with the equal data, // deleted data and the added data function array_diff_all($arr_new,$arr_old) { $arr_equ=array_intersect_assoc($arr_new,$arr_old); $arr_del=array_diff_assoc($arr_old,$arr_new); $arr_add=array_diff_assoc($arr_new,$arr_old); return $diff=array("equ"=>$arr_equ, "del"=>$arr_del, "add"=>$arr_add); } ?> ---- Manual Page -- http://www.php.net/manual/en/function.array-diff.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+52044 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+52044&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+52044&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+52044&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+52044&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+52044&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+52044&report=yes Search -- http://master.php.net/manage/user-notes.php