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You can also use Empty($_POST[&quot;one&quot;]), don't remember the difference by head but check php.net
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You can also use Empty($_POST["one"]), don't remember the difference by head but check php.net

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Hi,<br />
<br />
I want to validate that two check boxes were unchecked.<br />
<br />
How would I code:<br />
<br />
if<br />
&nbsp; &nbsp; &nbsp; not &nbsp; &nbsp;(isset($_POST['one']) &amp;&amp;&nbsp;not &nbsp; (isset($_POST['two'])<br />
<br />
location redirect&gt;&gt;&gt;&gt;try again<br />
<br />
Not s and ands , I'm thinking could be a problem causes problems<br />
<br />
Isaac
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Hi,

I want to validate that two check boxes were unchecked.

How would I code:

if
      not    (isset($_POST['one']) && not   (isset($_POST['two'])

location redirect>>>>try again

Not s and ands , I'm thinking could be a problem causes problems

Isaac

How to code if not (isset($_POST['xxx'])

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning). Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard), while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common.