$re = '/^[A-Za-z]+(?: [A-Za-z]+)* *[ -:] *[A-Za-z]+(?: [A-Za-z]+)*$/m';
$str = 'Villa-Levski
Villa:Levski
Villa Levski
Villa123-Levski123
Villa123:Levski123
Villa123 Levski123
Villa - Levski
Villa : Levski
Villa Levski
Manchester United - Tottenham HotSpurt';
preg_match_all($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