note 56992 deleted from reserved.variables by didou

Note Submitter: Zoic ---- I just wrote up this function to secure forms on my site so that you can't submit a form from anywhere but your site. This is extremely effective in securing your forms from hacking attempts. <?php function form_post_check() { $referring_url = $_SERVER['HTTP_REFERER']; // get the referring URL $host = $_SERVER['HTTP_HOST']; // get the header from the current request (example: www.yoursite.com) $valid_url = 'http://'.$host.'/'; // finish defining a valid referring URL $valid_len = strlen( $valid_url ); // get the length of the valid url // if the valid url isn't the first part of the referring url if ( substr( $referring_url, 0, $valid_len ) != $valid_url ) { die( 'You submitted this form from an invalid URL.' ); // stop everything and display a message } } ?>