Comments on: Compress PHP, CSS, JavaScript(JS) & Optimize website performance.

By: Parvaiz

Parvaiz — Mon, 06 Feb 2012 17:44:48 +0000

i have installed a script on my website for compression on run time, it works fine but when i check , is it compressed or not i found it is compressed on http://zingro.com/Check-Compression-of-Website.aspx but on other sites i do not find my website is compressed i do not know which is right.

By: Manado

Manado — Sun, 08 Jan 2012 09:59:36 +0000

nice trik. thankyou brother. i will do this on my website

By: Techie Salsan

Techie Salsan — Tue, 01 Nov 2011 02:03:19 +0000

I am using http://csscompressor.in to compress all of css. Its quick and easy to use online. Just try and see.

By: Roman

Roman — Fri, 29 Jul 2011 11:58:19 +0000

I compress my CSS only once with my own created css compressor:
http://www.igloro.info/en/css_compressor.html

but thanks for tut, anways <3

By: Tamik

Tamik — Sun, 01 May 2011 19:35:30 +0000

Nice tutorial. But i think doing a compression on server side is a bit overhead on server load. I prefer to compress files once and then just show the compressed version, the online tool http://www.zbugs.com can help avoid annoying manual compression.

By: Jasper

Jasper — Sun, 27 Mar 2011 17:31:13 +0000

Oh i forget about the cache part:
foreach($files as $file)
{
$file = $realpath.$file;
if ( is_file($file) && $mtime = filemtime($file))
{
$mtimes[] = $mtime;
} }
$hash = md5(json_encode($mtimes));
if(!$hash_compare = $this->cache->get($hash,false))
{
$has_been_modified = true;
$this->cache->set($hash,Date::YEAR);
}

By: Jasper

Jasper — Sun, 27 Mar 2011 17:27:20 +0000

You could also minify them in PHP a different way.
I do it this way:

The user, always gets just the minified version with no checking (or just every week or so)
The developer, sets a cookie by logging in as admin, and therefore a filemtime check is done every call, on all the css / js files.
If they are expired, the minified version gets rebuilt..
With minified version I mean, all the files combined into one file. Saves about 10 requests in my case
I then gzip this file too.
// write minified file
$f = fopen( $outfile , ‘w’ );
if ( $f ) {
fwrite( $f, $output );
fclose( $f );
$path = realpath($outfile);
$cmd = “gzip -9 $path -c > $path.gz”;
shell_exec($cmd);
}
I combine this with an htacces trick, to get the scripts and styles served Gzipped, STATICALLY

AddEncoding x-gzip .gz
ForceType text/javascript
Header set Vary Accept-Encoding

AddEncoding x-gzip .gz
ForceType text/css
Header set Vary Accept-Encoding

RewriteCond %{HTTP_USER_AGENT} !”.*Safari.*”
RewriteCond %{HTTP:Accept-encoding} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule ^(.*)\.js $1.js.gz [L,QSA]

RewriteCond %{HTTP_USER_AGENT} !”.*Safari.*”
RewriteCond %{HTTP:Accept-encoding} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule ^(.*)\.css $1.css.gz [L,QSA]

This performance difference is another 20-25ms per file, measured on Zend server CE linux, on a core2duo e6300 @ 3ghz.

By: Maskukuh

Maskukuh — Thu, 24 Mar 2011 00:30:16 +0000

Nice tutorial.. i’ll try this for my web blog.. thanks

By: Arn

Arn — Tue, 08 Feb 2011 12:32:23 +0000

Your article served as part of the basis for my newly created offline (batch) script that creates combined, minified and gzipped JS and CSS files. Files are pre-gzipped so no server overhead for compression every time file is served. More info at http://code.google.com/p/compress/

By: John

John — Fri, 21 Jan 2011 17:42:48 +0000

Thanks for your article. our website loaded quite slow. I hope this will help to speed it up.