Minecraft color parser for PHP

Colorize.php

<?php
    /*
     * Minecraft Color Parser for PHP
     * Copyright (c) 2013, Minecrell
     * MIT License: http://opensource.org/licenses/MIT
     */

    function parseMinecraftColors($string) {
        $string = utf8_decode(htmlspecialchars($string, ENT_QUOTES, "UTF-8"));
        $string = preg_replace('/\xA7([0-9a-f])/i', '<span class="mc-color mc-$1">', $string, -1, $count) . str_repeat("</span>", $count);
        return utf8_encode(preg_replace('/\xA7([k-or])/i', '<span class="mc-$1">', $string, -1, $count) . str_repeat("</span>", $count));
    }

MinecraftColors.css

/*
 * Minecraft Color Parser for PHP
 * Copyright (c) 2013, Minecrell
 * MIT License: http://opensource.org/licenses/MIT
 */

/* Colors  */
.mc-color.mc-0 { /* Black */ color: #000000; }
.mc-color.mc-1 { /* Dark Blue */ color: #0000AA; }
.mc-color.mc-2 { /* Dark Green */ color: #00AA00; }
.mc-color.mc-3 { /* Dark Aqua */ color: #00AAAA; }
.mc-color.mc-4 { /* Dark Red */ color: #AA0000; }
.mc-color.mc-5 { /* Purple */ color: #AA00AA; }
.mc-color.mc-6 { /* Gold */ color: #FFAA00; }
.mc-color.mc-7 { /* Gray */ color: #AAAAAA; }
.mc-color.mc-8 { /* Dark Gray */ color: #555555; }
.mc-color.mc-9 { /* Blue */ color: #5555FF; }
.mc-color.mc-a { /* Green */ color: #55FF55; }
.mc-color.mc-b { /* Aqua */ color: #55FFFF; }
.mc-color.mc-c { /* Red */ color: #FF5555; }
.mc-color.mc-d { /* Light Purple */ color: #FF55FF; }
.mc-color.mc-e { /* Yellow */ color: #FFFF55; }
.mc-color.mc-f { /* White */ color: #FFFFFF; }

/* Formatting */
.mc-color, .mc-r {
    color: #ffffff;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
}
.mc-k { /* TODO */ }
.mc-l { /* Bold */ font-weight: bold; }
.mc-m { /* Strikethrough */ text-decoration: line-through; }
.mc-n { /* Underline */ text-decoration: underline; }
.mc-o { /* Italic */ font-style: italic; }

/* Recommend Font: http://www.dafont.com/minecraftia.font */