$re = '/(A)(5|8)(F|M|G|C)(2|3)(0|2)((-)(A|B|C|D|E|F|G){4,4}){3,3}/m';
$str = 'A8F30-ABCD-EFGG-AAAA
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php