$re = '/(?<=SUMME|Gesamtsumme|Brutto|Gesamtbetrag|Endsumme|Rechnungsbetrag)(:)*([\s]*|(EUR|€))*(((\d{1,3}(,|.))*\d{2}))([\s]|€)*/m';
$str = 'SUMME EUR 9,50
SUMME1.332,80 €Sie haben noch Fragen? Sie erreichen uns tglch von XXXX bis XXX unter (#49) 1234108 78 54';
preg_match_all($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