note 68723 added to reserved.variables

I needed to do the exact same thing as jwl007 (sort by clicking links) but I needed it to append the variable to the query string if it didn't already exist. Here's the function I'm using: <?php function setGetVar($var, $val){ $request_uri = $_SERVER["REQUEST_URI"]; if(strstr($request_uri, $var)) { return preg_replace("/$var=[\\d\\w]*/", "$var=$val", $request_uri); } elseif(strstr($request_uri, "?")) { return $request_uri . "&" . $var . "=" . $val; } else { return $request_uri . "?" . $var . "=" . $val; } } ?> <a href="<?php echo setGetVar("orderby", "lname"); ?>">Sort by Last Name</a> <a href="<?php echo setGetVar("orderby", "fname"); ?>">Sort by First Name</a> ---- Server IP: 66.163.161.117 Probable Submitter: 63.226.97.170 ---- X-Spam-Status: No, hits=4.0 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER, HTML_20_30,HTML_MESSAGE autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/reserved.variables.php Edit -- https://master.php.net/note/edit/68723 Del: integrated -- https://master.php.net/note/delete/68723/integrated Del: useless -- https://master.php.net/note/delete/68723/useless Del: bad code -- https://master.php.net/note/delete/68723/bad+code Del: spam -- https://master.php.net/note/delete/68723/spam Del: non-english -- https://master.php.net/note/delete/68723/non-english Del: in docs -- https://master.php.net/note/delete/68723/in+docs Del: other reasons-- https://master.php.net/note/delete/68723 Reject -- https://master.php.net/note/reject/68723 Search -- https://master.php.net/manage/user-notes.php