Combining CSS in a single request
Does anyone know how to achieve something like TypeKit when combining multiple CSS request? Maybe I'am not aware of that but when you list some fonts the site would generate (maybe dynamic) CSS like 567,568,569.css lo load the font-file. I thought of it as dynamic as it would change if you use other combination (in this case font ID).
I use the technique described by Carpetsmoker, but I didn't like the fact that the PHP script is invoked every time. On Apache, you can set the following rewrite rule (in .htaccess):
RewriteCond %{REQUEST_URI} ^/css/cache
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^css/cache/(.*)$ /css/csscacher.php?files=$1 [L]
So say a request comes in for /css/cache/file1.css-file2.css, Apache will test for its existence. If it doesn't exist, the request will be forwarded to the csscacher.php script with the filename passed as the value of the "files" param. csscacher.php will load and combine the multiple files, send the result to the browser, but also write the result to /css/cache/file1.css-file2.css. All subsequent requests will be served as a static file.
To clear the cache, you'd just delete everything in the /css/cache folder. csscacher.php will recreate them from the source files as requests come in. More detail here.
You could also just use
@import url('reset.css');
at the top of your main css fiel to import other css files on the fly.
Have a look at the Google minify project. It offers a good solution to combine and also compress your JavaScript or CSS files. It is a PHP library that you can set up on your webserver with a script that takes a list of JS or CSS files and outputs a concatenated version. It also caches the result.
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