Re: [PHP] if statment

[Leif K-Brooks]

You should be using if(!isset($HTTP_GET_VARS['id'])){  Otherwise, it 
generates an eror when it simply doesn't exist.  "" and nothing (an 
unset variable) are NOT the same.

Tim Haskins wrote:

below is what I have currently

<?php if ($HTTP_GET_VARS["id"] == "") {  ?>
its empty
<?php }?>
Now when I change the == to <> I receive the following error:

Notice: Undefined index: id in c:\inetpub\wwwroot\_\users.php on line 103

Why would that not work - In asp it does, but I can't get it workin in php.
If that doesn't make sense, I would like to have an if statement the says,
if HTTP_GET_VARS["id"] is NOT empty then show something else
Thanks for you guy's help and time



--
Tim Haskins


"Tim Haskins" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
 

Wow, that's weird- I had just tried it and that didn't work, so I thought
   

it
 

might be some special php thing goin on- thanks for your help!

--
Tim Haskins


"Jennifer Goodie" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
   

so change it to ""

-----Original Message-----
From: Tim Haskins [mailto:[EMAIL PROTECTED]
Sent: Monday, March 31, 2003 12:12 PM
To: [EMAIL PROTECTED]
Subject: Re: [PHP] if statment
My bad, I actually meant that the "nothing" was like, if the pr_ID in
     

the
 

url is empty then show the following text.

--
Tim Haskins
"Jennifer Goodie" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
     

if( $HTTP_GET_VARS["pr_ID"] == "nothing"){
echo "there are no products";
}
http://www.php.net/manual/en/control-structures.php
http://www.php.net/manual/en/

-----Original Message-----
From: Tim Haskins [mailto:[EMAIL PROTECTED]
Sent: Monday, March 31, 2003 11:56 AM
To: [EMAIL PROTECTED]
Subject: [PHP] if statment
I'm used to asp and not php, but what would the code be for and if
       

statement
     

that was like:

if $HTTP_GET_VARS["pr_ID"] = "nothing" then
"there are no products"
end if
Also does anyone know a great resource that lists different examples
       

of
 

php
     

variables, if statements, and so on?

Thanks so much!
--
Tim Haskins


       

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