css js 압축된 캐쉬로 전송하기
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<?php
$cache = true;
$cachedir = dirname(__FILE__) . '/cache';
$cssdir = dirname(__FILE__) . '/html/css';
$jsdir = dirname(__FILE__) . '/js';
// Determine the directory and type we should use
switch ($_GET['type']) {
case 'css':
$base = realpath($cssdir);
break;
case 'javascript':
$base = realpath($jsdir);
break;
default:
header ("HTTP/1.0 503 Not Implemented");
exit;
};
$type = $_GET['type'];
$elements = explode(',', $_GET['files']);
// Determine last modification date of the files
$lastmodified = 0;
while (list(,$element) = each($elements)) {
$path = realpath($base . '/' . $element);
if (($type == 'javascript' && substr($path, -3) != '.js') ||
($type == 'css' && substr($path, -4) != '.css')) {
header ("HTTP/1.0 403 Forbidden");
exit;
}
if (substr($path, 0, strlen($base)) != $base || !file_exists($path)) {
header ("HTTP/1.0 404 Not Found");
exit;
}
$lastmodified = max($lastmodified, filemtime($path));
}
// Send Etag hash
$hash = $lastmodified . '-' . md5($_GET['files']);
header ("Etag: \"" . $hash . "\"");
if (isset($_SERVER['HTTP_IF_NONE_MATCH']) &&
stripslashes($_SERVER['HTTP_IF_NONE_MATCH']) == '"' . $hash . '"')
{
// Return visit and no modifications, so do not send anything
header ("HTTP/1.0 304 Not Modified");
header ('Content-Length: 0');
}
else
{
// First time visit or files were modified
if ($cache)
{
// Determine supported compression method
$gzip = strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip');
$deflate = strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate');
// Determine used compression method
$encoding = $gzip ? 'gzip' : ($deflate ? 'deflate' : 'none');
// Check for buggy versions of Internet Explorer
if (!strstr($_SERVER['HTTP_USER_AGENT'], 'Opera') &&
preg_match('/^Mozilla\/4\.0 \(compatible; MSIE ([0-9]\.[0-9])/i', $_SERVER['HTTP_USER_AGENT'], $matches)) {
$version = floatval($matches[1]);
if ($version < 6)
$encoding = 'none';
if ($version == 6 && !strstr($_SERVER['HTTP_USER_AGENT'], 'EV1'))
$encoding = 'none';
}
// Try the cache first to see if the combined files were already generated
$cachefile = 'cache-' . $hash . '.' . $type . ($encoding != 'none' ? '.' . $encoding : '');
if (file_exists($cachedir . '/' . $cachefile)) {
if ($fp = fopen($cachedir . '/' . $cachefile, 'rb')) {
if ($encoding != 'none') {
header ("Content-Encoding: " . $encoding);
}
header ("Content-Type: text/" . $type);
header ("Content-Length: " . filesize($cachedir . '/' . $cachefile));
fpassthru($fp);
fclose($fp);
exit;
}
}
}
// Get contents of the files
$contents = '';
reset($elements);
while (list(,$element) = each($elements)) {
$path = realpath($base . '/' . $element);
$contents .= "\n\n" . file_get_contents($path);
}
// Send Content-Type
header ("Content-Type: text/" . $type);
if (isset($encoding) && $encoding != 'none')
{
// Send compressed contents
$contents = gzencode($contents, 9, $gzip ? FORCE_GZIP : FORCE_DEFLATE);
header ("Content-Encoding: " . $encoding);
header ('Content-Length: ' . strlen($contents));
echo $contents;
}
else
{
// Send regular contents
header ('Content-Length: ' . strlen($contents));
echo $contents;
}
// Store cache
if ($cache) {
if ($fp = fopen($cachedir . '/' . $cachefile, 'wb')) {
fwrite($fp, $contents);
fclose($fp);
}
}
}
?>
맨위줄쪽에 캐쉬로쓸 디렉토리 정해주시고 만드세요 777로
css와 js있는 디렉토리 적어주시고요
http://sdfs.com/.htaccess 파일을 열어 맨 밑줄에
RewriteRule ^html/css/(.*\.css) /combine.php?type=css&files=$1
RewriteRule ^js/(.*\.js) /combine.php?type=javascript&files=$1
적어 줍니다.
css javascript 파일이 호출되면 전에 만들어 두었던 압축된 캐쉬 파일로 전송합니다
cache-1249483693-199c2258d6f623667976533a77b1e675.javascript.gzip
요런식의 파일이 만들어집니다. 용양은대략 50%~60% 정도 줄어드네요
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