minifier.php

<?php

    /*
     * JS and CSS Minifier
     * version: 1.0 (2013-08-26)
     *
     * This document is licensed as free software under the terms of the
     * MIT License: http://www.opensource.org/licenses/mit-license.php
     *
     * António Almeida wrote this plugin, which proclaims:
     * "NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK."
     *
     * This plugin uses online webservices from javascript-minifier.com and cssminifier.com
     * This services are property of Andy Chilton, http://chilts.org/
     *
     * Copyrighted 2013 by António Almeida, promatik.
     */

    function minifyJS($arr)
    {
        minify($arr, 'https://www.toptal.com/developers/javascript-minifier/raw');
    }

    function minifyCSS($arr)
    {
        minify($arr, 'https://cssminifier.com/raw');
    }

    function minify($arr, $url)
    {
        foreach ($arr as $key => $value) {
            $handler = fopen($value, 'w') or die("File <a href='".$value."'>".$value.'</a> error!<br />');
            fwrite($handler, getMinified($url, file_get_contents($key)));
            fclose($handler);
            echo "File <a href='".$value."'>".$value.'</a> done!<br />';
        }
    }

    function getMinified($url, $content)
    {
        $postdata = ['http' => [
            'method' => 'POST',
            'header' => 'Content-type: application/x-www-form-urlencoded',
            'content' => http_build_query(['input' => $content]), ]];

        return file_get_contents($url, false, stream_context_create($postdata));
    }