note 90477 added to function.unset

Here's a simple function to remove a variable from an HTTP Query String: <?php function unset_query_string_var($varname,$query_string) { $query_array = array(); parse_str($query_string,$query_array); unset($query_array[$varname]); $query_string = http_build_query($query_array); return $query_string; } ?> ---------------------------- Example Usage #1: Let's say you want to remove the variable "fruit" from $page_url below... <?php $page_url = "http://www.example.com/script.php?fruit=apple&color=red"; $url_data = parse_url($page_url); $query_string = unset_query_string_var("fruit",$url_data['query']); $page_url_new = $url_data['scheme'].'://'.$url_data['host'].$url_data['path']; if (!empty($query_string)) $page_url_new .= '?'.$query_string; $page_url_new .= $url_data['fragment']; print $page_url_new; ?> Output: http://www.example.com/script.php?color=red ---------------------------- Example Usage #2: To remove the variable "q" from the query string of the current page, try something like... <?php $page_url = 'http://'.$_SERVER["SERVER_NAME"].$_SERVER['PHP_SELF']; $query_string = unset_query_string_var("q",$_SERVER["QUERY_STRING"]); if (!empty($query_string)) $page_url .= '?'.$query_string; ?> ---- Server IP: 208.69.120.35 Probable Submitter: 98.216.111.168 ---- Manual Page -- http://www.php.net/manual/en/function.unset.php Edit -- https://master.php.net/note/edit/90477 Del: integrated -- https://master.php.net/note/delete/90477/integrated Del: useless -- https://master.php.net/note/delete/90477/useless Del: bad code -- https://master.php.net/note/delete/90477/bad+code Del: spam -- https://master.php.net/note/delete/90477/spam Del: non-english -- https://master.php.net/note/delete/90477/non-english Del: in docs -- https://master.php.net/note/delete/90477/in+docs Del: other reasons-- https://master.php.net/note/delete/90477 Reject -- https://master.php.net/note/reject/90477 Search -- https://master.php.net/manage/user-notes.php