$re = '/(\(|)([1-9]{3}|[1-9]{2})(\)| {1})( {1}|)(((\d{5}\-\d{4})|(\d{5}\d{4}))|((\d{4}\-\d{4})|(\d{4}\d{4})))|\d{5}(\-|)\d{4}|\d{4}(\-|)\d{4}/';
$str = '';
preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0);
// Print the entire match result
var_dump($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