Compress CSS Files using PHP

Here is the nice trick to compress your css files using PHP in easy way. For this trick you do not need to rename your .css file .php files.

Currently I was seaching for the CSS compression tricks and found several methods. Some of those methods needs to rename my .css files to .php files and place the compression code in all file.

But in trick you do not need to rename the css files and you can get it done by one PHP file only.

Let’s see how it works:

You need to create one PHP and place the below code into that PHP file.

[cc lang=”php”]

[/cc]

Update:

[cc lang=”php”]
$lastCssModificatedAt)
{
$lastCssModificatedAt = $cssModificatedAt;
}
}

if(filemtime($cacheFilename) >= $lastCssModificatedAt)
{
return true;
}
}
return false;
}

/* include all CSS files */
// include(“style.css”);
// include(“fonts.css”);
// include(“print.css”);

$cssFiles = array(“style.css”, “fonts.css”, “print.css” );

// This can be changed whatever you want
$cacheFilename = md5(implode(“”,$cssFiles)).”.css”;

$cssCompressed = “”;

if(!checkCacheIsOk($cacheFilename, $cssFiles))
{
$cssCompressed = buildCache($cssFiles);
writeCache($cacheFilename, $cssCompressed);
}
else
{
$cssCompressed = file_get_contents($cacheFilename);
}

echo $cssCompressed;

[/cc]

This method uses the output buffer function to make it work. From here You can know about Output Buffer Explained.

Note: You do not need to rename you .css files to .php.