JS and CSS Compression with PHP

[mapg]

Is there any way to configure PHP to compress not only PHP output but Javascripts files (.js) and CSS files (.css) that are referred into the PHP script?

I have enabled "zlib.output_compression on" and "zlib.output_compression_level 3", but I afraid that doesn't affect to JS and CSS file formats.

Thank you very much in advance.

Mapg

[FreMEliCa]

Here:
http://fiftyfoureleven.com/sandbox/w...s-gzip-method/

Similar process for JS I think.

[mapg]

I have added AddType application/x-httpd-php .php .css .js

and works ... At least I see these files (.css and .js) as gzipped at ...

http://leknor.com/code/gziped.php

So I am not sure if it's necessary to add some kind of header to css or js files like as follow ...

<?php
ob_start(); 
header("Content-Type: text/css");
?>

... or an prepend_file tag in .htaccess where styles are placed, namely ...

php_value auto_prepend_file gzip-css.php (as noted in the link that you provided)

Is it enough if I saw gzipped my css files at http://leknor.com/code/gziped.php?

Thanks

Mapg

[reminder]

congratulation for the site and the script!
really impressive!
nice job

[FreMEliCa]

From:
http://www.fiftyfoureleven.com/sandb...s-gzip-method/

1. You save this snippet as gzip-css.php:

<?php 
ob_start ("ob_gzhandler");
header("Content-type: text/css");
header("Cache-Control: must-revalidate");
$offset = 60 * 60 ;
$ExpStr = "Expires: " . 
gmdate("D, d M Y H:i:s",
time() + $offset) . " GMT";
header($ExpStr);
?>

2. Add this snippet to your htaccess:

AddHandler application/x-httpd-php .css
php_value auto_prepend_file gzip-css.php

Make sure that if you do this that your CSS files are in a directory all by themselves.

Since you probably don't want to do that, and you want your JS gzipped you should do the following:

Keep your htaccess rule of:

AddType application/x-httpd-php .php .css .js

Then put this at the start of your CSS files:

<?php 
ob_start ("ob_gzhandler");
header("Content-type: text/css");
header("Cache-Control: must-revalidate");
$offset = 60 * 60 ;
$ExpStr = "Expires: " . 
gmdate("D, d M Y H:i:s",
time() + $offset) . " GMT";
header($ExpStr);
?>

and this at the start of your JS files:

<?php 
ob_start ("ob_gzhandler");
header("Content-type: text/javascript");
header("Cache-Control: must-revalidate");
$offset = 60 * 60 ;
$ExpStr = "Expires: " . 
gmdate("D, d M Y H:i:s",
time() + $offset) . " GMT";
header($ExpStr);
?>

Remember that we need to make sure that our CSS files, though being parsed by PHP need to be sent with a MimeType of text/css or it won't display in stricter browsers, and similarly for JS.

[mapg]

Thank you very much for your reply.

Seems that configuring PHP with ...

zlib.output_compression on

or with ...

php_flag zlib.output_compression on

in the main .htaccess (root directory)

... it's not necessary to add "ob_gzhandler" in every css or js file.

After that,

AddType application/x-httpd-php .php .css .js

... is a must, of course.

I am agree with you that ...

header("Content-type: text/css");

and ...

header("Content-type: text/javascript");

... is a good option to avoid problems with strict browsers

But ...

* snip * 
header("Cache-Control: must-revalidate");
$offset = 60 * 60 ;
$ExpStr = "Expires: " . 
gmdate("D, d M Y H:i:s",
time() + $offset) . " GMT";
header($ExpStr);
* snip *

... could be handled by the html code itself with common tags.

I also added ...

zlib.output_compression_level 3

because works fine and CPU is not overloaded.

... or if you prefer a htaccess file ...

php_value zlib.output_compression_level 3

I suggest do several tests at ...
http://leknor.com/code/gziped.php

Best Regards,

Mapg