$re = '/orderNumber : (?P<orderNumber>[^\s]+).*?orderType : (?P<orderType>[^\s]+).*?orderCompany : (?P<orderCompany>[^\s]+).*/ms';
$str = 'orderNumber : 100 orderType : OP orderCompany : 00890';
preg_match_all($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