$re = '/^(\d{1,2}-\d{1,2}-\d{2,4})(([\w\d]+\s?\d{2}\-\d{2}\-\d{4}]?\s\-\s\d{2}\-\d{2}\-\d{4})|([\w]+))(([\d\,]+)|(\s[\d\,]+)|(\-[\d\,]+))/m';
$str = '31-12-2019Forfait 01-01-2019 - 31-12-2019-29,00
31-12-2019Forfait 01-01-2019 - 31-12-201950,00
31-12-2019Mercedes-500,00
31-12-2019Client10 700,00';
preg_match_all($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