What's wrong with this tar command?

[glennzo]

Run from a script

PHP Code:

tar -czvf $BACKUP_DIR/$BACKUP_NAME * 


I get the following greeting:

PHP Code:

tar: You may not specify more than one `-Acdtrux' or `--test-label' option
Try `tar --help' or `tar --usage' for more information. 


In the script ...

PHP Code:

BACKUP_DIR="/mnt/disk3/backup"
BACKUP_NAME="scripts-`date +%Y%m%d`.tar.gz"