Make a user defined function to perform XSS filtering


<?php

function sanitise($arg){

$arg = strip_tags($arg);

$arg = htmlentities($arg);

$arg = htmlspecialchars($arg);

$arg = trim($arg);

return $arg;

}

?>

 

Sanitisation in PHP


XSS Filtering : Preventing user or hacker from injecting any other script such that it donot enables php to execute.


XSS Means cross site scripting.


How To Make a user defined function to perform XSS filtering in PHP