$re = '/^(?<startwort>AB[\w\d]+)\s+(?<startplus>(AB[\w\d]+\s+)+)(?<vorwort>.*)\s+(?<zahl>\d+)\s+(?<wort>\w+)\s+(?<betrag>[\d.,]+)\s*$/';
$str = 'AB0007711 CD0TZUUZ AB899979 At vero eos et 10 100 XYZ 1.223,50';
preg_match($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