backup database

[nikko50]

The following produces an empty file. I can't figure out why?? Any ideas??

system(sprintf(
'mysqldump --skip--opt -h %s -u %s -p%s %s | gzip > %s/%s/%s-%s%s%s-%s%s.gz',

$host,
$user,
$pass,
$db,
getenv('DOCUMENT_ROOT'),
$backupdir,
$db,
$year,
$month,
$day,
$hour,
$min
));