$re = '/(?:Server\sTime:\s?(.*)|Username:\s?(.*)|Important\sData:\s?(\w+))/';
$str = '$input = @"
Server Time: 4/13/2016 12:29 PM
Username: RBullwinkle
Lorem ipsum dolor Important Data: rosebud sit amet
"@;
$input = @"
Lorem ipsum dolor Important Data: differentORder sit amet
Server Time: 2/29/2085 12:29 PM
Username: sweaver2112
"@;';
preg_match_all($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