note 87195 added to reserved.variables.server

It's worth noting that $_SERVER variables get created for any HTTP request headers, including those you might invent: If the browser sends an HTTP request header of: X-Debug-Custom: some string Then: <?php $_SERVER['HTTP_X_DEBUG_CUSTOM']; // "some string" ?> There are better ways to identify the HTTP request headers sent by the browser, but this is convenient if you know what to expect from, for example, an AJAX script with custom headers. Works in PHP5 on Apache with mod_php. Don't know if this is true from other environments. ---- Server IP: 69.147.83.197 Probable Submitter: 70.245.13.117 ---- Manual Page -- http://www.php.net/manual/en/reserved.variables.server.php Edit -- https://master.php.net/note/edit/87195 Del: integrated -- https://master.php.net/note/delete/87195/integrated Del: useless -- https://master.php.net/note/delete/87195/useless Del: bad code -- https://master.php.net/note/delete/87195/bad+code Del: spam -- https://master.php.net/note/delete/87195/spam Del: non-english -- https://master.php.net/note/delete/87195/non-english Del: in docs -- https://master.php.net/note/delete/87195/in+docs Del: other reasons-- https://master.php.net/note/delete/87195 Reject -- https://master.php.net/note/reject/87195 Search -- https://master.php.net/manage/user-notes.php