PHP Code:
$row_orderComments['PPassValue'] = ereg_replace("\n", '', $row_orderComments['PPassValue']);
$row_orderComments['PPassValue'] = ereg_replace("\r", '', $row_orderComments['PPassValue']);
This will remove both \n and \r. Some systems do line returns with both characters (\r\n) so you need to sanitize for both.