number_format(floatval($row['credits']),"",',', '.'),
number_format($row['credits'],"",',', '.'),
Beide Sachen klappen unter php4 und php 5.2.11, aber nicht in 5.3, bringt Fehler:
Warning: number_format() expects parameter 2 to be long
Lösung:
number_format(floatval($row['credits']),"0",',', '.'),
number_format($row['credits'],"",',', '.'),