What kind of DB are you using? If it's SQL-driven, you can define some constrains on the table level protecting from duplicates, like a composite UNIQUE KEY.

Generally, if you can detect duplicates AFTER adding the data to DB, you can detect them BEFORE you add the data to DB, and display a warning.

     s;;Just-me-not-h-Ni-m-P-Ni-lm-I-ar-O-Ni;;tr?IerONim-?HAcker ?d;print

In reply to Re: CGI and Sessions by Ieronim
in thread CGI and Sessions by santhi

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