note 74592 added to function.apache-request-headers

There is a simple way to get request headers from Apache even on PHP running as a CGI. As far as I know, it's the only way to get the headers "If-Modified-Since" and "If-None-Match" when apache_request_headers() isn't available. You need mod_rewrite, which most web hosts seem to have enabled. Put this in an .htacess file in your web root: RewriteEngine on RewriteRule .* - [E=HTTP_IF_MODIFIED_SINCE:%{HTTP:If-Modified-Since}] RewriteRule .* - [E=HTTP_IF_NONE_MATCH:%{HTTP:If-None-Match}] The headers are then available in PHP as <?php $_SERVER['HTTP_IF_MODIFIED_SINCE']; $_SERVER['HTTP_IF_NONE_MATCH']; ?> I've tested this on PHP/5.1.6, on both Apache/2.2.3/Win32 and Apache/2.0.54/Unix, and it works perfectly. Note: if you use RewriteRules already for clean URLs, you need to put the above rules AFTER your existing ones. ---- Server IP: 69.147.83.197 Probable Submitter: 89.240.202.62 ---- Manual Page -- http://www.php.net/manual/en/function.apache-request-headers.php Edit -- https://master.php.net/note/edit/74592 Del: integrated -- https://master.php.net/note/delete/74592/integrated Del: useless -- https://master.php.net/note/delete/74592/useless Del: bad code -- https://master.php.net/note/delete/74592/bad+code Del: spam -- https://master.php.net/note/delete/74592/spam Del: non-english -- https://master.php.net/note/delete/74592/non-english Del: in docs -- https://master.php.net/note/delete/74592/in+docs Del: other reasons-- https://master.php.net/note/delete/74592 Reject -- https://master.php.net/note/reject/74592 Search -- https://master.php.net/manage/user-notes.php