$re = '/>([0-9]{10})[-<;]\s{1,2}([0-9]{4})([0-9]{5})#(\s([0-9_\?]{0,8}))?(\+\s([a-z0-9_\?]{0,5}))?(\-\s([\.,0-9_\?]{0,10})>)?/';
$str = '>1234567890< 123451234#';
preg_match_all($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