note 38129 added to function.array-intersect

To check whether an array $a is a subset of array $b, do the following: <?php if(array_unique($b + $a) === $b) //... ?> Actually, PHP ought to have a function that does this for you. But the above example works. ---- Manual Page -- http://www.php.net/manual/en/function.array-intersect.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+38129 Delete -- http://master.php.net/manage/user-notes.php?action=delete+38129&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+38129&report=yes Search -- http://master.php.net/manage/user-notes.php