I am currently trying to achieve a compression method for my CSS files. I am basically copying the same way I do it for my JS files, but it is not working. I checked with Firebug tool, but there is no CSS being loaded.
How can I call the css.php which will then call the compressed CSS files?
Working code with JS, the file is scripts.php (I did not specify the .js extension):
<script type="text/javascript" src="js/scripts.php?build=123&load=foo,bar"></script>
I wanted to do the same for my CSS files:
<link href="styles/css.php?build=123&load=foo,bar/jquery-ui-1.8rc2.custom" type="text/css">
The css.php is supposed to do the compression:
<?php
error_reporting(E_ERROR);
// see http://web.archive.org/web/20071211140719/http://www.w3.org/2005/MWI/BPWG/techs/CachingWithPhp
// $lastModifiedDate must be a GMT Unix Timestamp
// You can use gmmktime(...) to get such a timestamp
// getlastmod() also provides this kind of timestamp for the last
// modification date of the PHP file itself
function cacheHeaders($lastModifiedDate) {
if ($lastModifiedDate) {
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $lastModifiedDate) {
if (php_sapi_name()=='CGI') {
Header("Status: 304 Not Modified");
} else {
Header("HTTP/1.0 304 Not Modified");
}
exit;
} else {
$gmtDate = gmdate("D, d M Y H:i:s \G\M\T",$lastModifiedDate);
header('Last-Modified: '.$gmtDate);
}
}
}
// This function uses a static variable to track the most recent
// last modification time
function lastModificationTime($time=0) {
static $last_mod ;
if (!isset($last_mod) || $time > $last_mod) {
$last_mod = $time ;
}
return $last_mod ;
}
lastModificationTime(filemtime(__FILE__));
cacheHeaders(lastModificationTime());
header("Content-type: text/css; charset: UTF-8");
ob_start ("ob_gzhandler");
foreach (explode(",", $_GET['load']) as $value) {
if (is_file("$value.css")) {
$real_path = mb_strtolower(realpath("$value.css"));
if (strpos($real_path, mb_strtolower(dirname(__FILE__))) !== false ||strpos($real_path, mb_strtolower(dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'modules'.DIRECTORY_SEPARATOR)) !== false) {
lastModificationTime(filemtime("$value.css"));
include("$value.css"); echo "\n";
}
}
}
?>
