Get a list of all font awesome icons

gistfile1.php

<?php

$pattern = '/\.(icon-(?:\w+(?:-)?)+):before\s+{\s*content:\s*"(.+)";\s+}/';
$subject = file_get_contents('css/font-awesome.css');

preg_match_all($pattern, $subject, $matches, PREG_SET_ORDER);

$icons = array();

echo '<ul>';
foreach($matches as $match){
    echo '<li><i class="' .$match[1] .'"></i> '.$match[1].'</li>';
}
echo '</ul>';