CodeIgniter css, js and html minifier. This code was created in CodeIgniter 3.0.1 but I assume, it would work for 2.x as well. Please test it yourself before integrating it in your project

It's simply a hook that preprocesses your request before outputing it to browser and combines and minifies all the CSS and JS into one single minified JS and CSS files respectively. This file is stores in cached/js/ and cached/css/ under root. PLEASE NOTE: No modification is done to the CSS/JS code as this minification is carried out by regular expression matching, which means, the path to any imports/URLs are not changed as well. To support that, it also copies any such referenced fonts/images under cached/fonts and cached/images/ directories. Please ensure that your 'cached' directory has enough permissions for the hook to work.

#How does it work? Download and unzip the package. Copy 'resource.php' from application/hooks and copy it under the same path (ie, application/hooks) in your project. In your config/hooks.php, add the following towards the bottom of the file:

$hook['pre_controller'][] = array(
'class'     => 'Resource',
'function'  => 'init',
'filename'  => 'resource.php',
'filepath'  => 'hooks'
);
$hook['display_override'][] = array(
'class'     => 'Resource',
'function'  => 'renderHTML',
'filename'  => 'resource.php',
'filepath'  => 'hooks'
);

<link rel="text/stylesheet" href="" />
<link rel="text/stylesheet" href="" />
<script rel="text/javascript" href=""></script>
<script rel="text/javascript" href=""></script>