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How do I check if checkbox in the form was checked or not?

( #154540=categorized question: print w/ replies, xml ) Need Help??
Contributed by Zombie dima on Mar 27, 2002 at 00:20 UTC
Q&A  > CGI programming


Description:

<input type="checkbox" name="checkbox" value="on" checked>

When I print the value of checkbox it prints blank instead of on, and thats why pearl code below always goes into else statement. What should I do so that I can check if the checkbox is marked or not?????? Thanks a lot!!!!

if ($field{'checkbox'}) { # checkbox was checked $chkbutton1 = "Yes send me news letter"; } else { # checkbox left unchecked $chkbutton1 = "No don't send me news letter"; }

Answer: How do I check if checkbox in the form was checked or not?
contributed by Flame

First, allways "use CGI;" to get values, it's simple, safe, and effective.

Second, you need to make sure you specify a value for the checkbox if you really want to be able to see if it is checked.

Eg: <INPUT TYPE=CHECKBOX NAME="MyBOX" VALUE="on">

Code:

if($cgi->param('MyBOX') eq 'on'){ #Do whatever }else{ #... }

This should also work:

if($cgi->param('MyBOX')){ #Do whatever }else{ #... }

But the first is a little more paranoid.

Hope this helps...

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