Hi, thanks for taking a look. The log file prints everything in sequence, something like this:

Head1     Head2    Head3    Head4    Head5
val1      val2     val9     val10    val1
[download]

what I want is this:

Head1     Head2    Head3    Head4    Head5  ...   Head9
val1      val2                                    val9
[download]

where values 3-8 are null, they don't print. I'll try you suggestion and see what that gives me.

Thank you!

UPDATE:
adding: print LOGFILE "/$key/".$FORM{$key}."\n"; instead of what I have already doesn't add the fields with no value, it just prints element on a new line, like it's a new record in the flat file