Font Awsome to PHP Array

parse_font_awsome_css.php

 <?php
    $pattern = '/\.(fa-(?:\w+(?:-)?)+):before\s+{\s*content:\s*"\\\\(.+)";\s+}/';
    $subject = file_get_contents($_SERVER['DOCUMENT_ROOT'].'/css/font-awesome/css/font-awesome.css');
    preg_match_all($pattern, $subject, $matches, PREG_SET_ORDER);

    echo '$fa_icon = [';
    foreach($matches as $match) {
        echo "'$match[1]' => '<li class=\"fa $match[1]\"></li>',\n";
    }
    echo ']';