if statement don't work

TheBeginner

Hi,

My administrator have set up php and mysql on the server.

Now I put my php files in right folder and they are executed.
Everything works BUT not the if statement!

<?php
print("Greetings <br>");
if ($name!='')
{
print("$name");
}
?>

The execute the file with:
www.myserver.com/index.php?name=Martin

The "Greetings" line is shown but not the name.

I have tried with severral types of it statements but the if statement don't execute - no of them!

Have you seen that problem after setting up the php?
What did he do wrong?

pyro

He didn't do anything wrong. It looks like your server doesn't support global variables. Take a look at this, for more information: http://www.webdevfaqs.com/php.php#globalvariables

TheBeginner

I'm looking at the information and there I see:
"register_globals Off Off "

Is it what you mean.

Is there some kind of pron of runing like that. It is very hard to do that and it seems not nessasary.

pyro

Yes, if register_globals is off, you will have to reference your form variables via the $POST, $GET or $_REQUEST superglobals (in PHP < 4.2.0, $HTTP_POST_VARS, etc). It is better that you do not user global variables anyway, though. In your example you'd want something like this:

<?php 
echo "Greetings <br>"; 
if ($_GET['name'] != "") { 
    echo $_GET['name']; 
} 
?>

TheBeginner

Thansk for the replay!

Why is that?

Ok, I mean the code is maybe better, but it is much simplier to write $name than write $_GET['name'].

What are the prons and cons of that?

TheBeginner

I'm trying to use this code:
<?php
print("Greetings <br>");
if ($_GET['name']!='')
{
print("$name");
}
?>

and accesing ther file with :
.....index.php?name=martin

and still there is no output from the if statement.
Is $_GET the right code to use?

pyro

Take a look at http://us4.php.net/manual/en/security.registerglobals.php

TheBeginner

Sorry...got is right now. Forgot to change the print-line.
:=)

pyro

Use the code I posted above, or modify your's so it looks like this:

<?php 
print("Greetings <br>"); 
if ($_GET['name']!='') 
{ 
print($_GET['name']); 
} 
?>