note 26313 deleted from function.strip-tags by vrana

From: Date: Mon, 22 Dec 2003 16:18:56 +0000
Subject: note 26313 deleted from function.strip-tags by vrana
References: 1  Groups: php.notes 
Request: Send a blank email to php-notes+get-62331@lists.php.net to get a copy of this message
Note Submitter: jsheets@shadonet.com ---- Here is a function I use to cleanup data from the user, you should do additional checks i.e. make sure a variable is_numeric if you are expecting a numeric value but this does a pretty good job of removing a lot of the things a user will try to do. This function uses recursion so it will clean multi-dimensional arrays as well. function clean_array(&$array) { foreach ($array as $arraykey => $arrayvalue) { if (is_array($arrayvalue)) { clean_array($array[$arraykey]); } else { $array[$arraykey] = trim(stripslashes(strip_tags($arrayvalue))); } } } Here is an example: $uservars = $_REQUEST; clean_array($uservars); This example assigns $_REQUEST to $uservars and then cleans them, I've had problems assigning to $_REQUEST directly so I copy it into another variable. $_REQUEST can be multi-dimensional without a problem.

« previous php.notes (#62331) next »