[SOLVED] Very quick question - opposite of ISSET?

[delphi123]

I have the following line to open an if - basically I'm checking that the user DOES have an id set and that they HAVEN'T got a cookie.

if (isset($_GET['id'])&& isset($_COOKIE[$software_cookie]))

How can I change the above statement so it does this?

[adam291086]

if (isset($_GET['id'])&& !isset($_COOKIE[$software_cookie]))

 

I think that will work.

 

Feel free to correct me anyone i am still on the steep learning curve of php.

[Lumio]

You mean, that you want to ask if it is not set?

Like that:

<?php
   if (!isset($var) && !isset($var)) {
      //code...
   }

   //or

   if (isset($var) === false && isset($var) === false) {
      //your code
   }
?>

[themistral]

isset

checks to see if something is set and

!isset

checks something is not set

[delphi123]

perfect!  learn something every time! 

[Lumio]

3 posts and all the same. hmm... okay

You can also use empty. But empty is a little bit different...

var_dump( empty("0") );

var_dump( empty("") );

both are true.