[SOLVED] Simple php GET code

[mmitdnn]

Hi guys,

 

I want to be able to parse variables from the url into the content of a php page.

 

For example:

 

site.com/page.php?myvariable=something

 

I'm currently using a very simple code (that I don't even remember) - something like: <?"myvariable"?>.

 

This code does work on some servers but not on all.

 

I want a more "stable" code. Something that will work on all servers no matter what php version they run. And I need something to show even if for some reason the php variable is absent.

 

I'm not a php programmer (in case you haven't figured it out already :-)).

 

I've been told that the string may need to have GET as well as "if else" and "echo".

 

Could someone please tell me what code I could use?

 

Thanks...

[Fearpig]

Try this....

 

if (!isset($_GET['id'])){
   $id = "YourDefaultValue";
}
else {
   $id = $_GET['id'];
}

 

This is looking for a URL something like www.test.com?id=YourVariable

If it recieves www.test.com then it uses the default value otherwise YourVariable is passed onto $id to be used later!

 

Hope that makes some sense....

 

Basically you can use $id = $_GET['id'];

[kenrbnsn]

You can also use the "Ternary Operator" (scroll down) like this

<?php
$id = (isset($_GET['id'])?$_GET['id']:'default value';
?>

 

Ken

[mmitdnn]

Hmmm...

 

Thanks guys.

 

I tried fearpig's code and nothing shows on the page.

 

I tried Ken's code and I get an unexpected ";" error message

 

Not sure if I'm doing something wrong...

 

Thanks

[kenrbnsn]

Sorry, I left out a ")":

<?php
$id = (isset($_GET['id']))?$_GET['id']:'default value';
?>

 

Ken

[mmitdnn]

Thanks Ken...

 

Now the code doesn't show anything on the page.

 

When I use my simple code <?=$id?>, it works fine.

 

Any ideas?

 

George

[kenrbnsn]

Please post your code between

tags.

 

Ken

[mmitdnn]

Hi Ken,

 

<?php
$id = (isset($_GET['id']))?$_GET['id']:'default value';
?>

 

I have essentially copied and pasted your code in the page.

 

I also have the simple code on the page.

 

The simple one works. The other doesn't.

 

Thanks,

 

George

[kenrbnsn]

No, post all of the code.

 

Ken

[MadTechie]

what..!!

 

can you post all the code

[mmitdnn]

<p>simple code: </p>
<?=$id?>
<p>Ken's code </p>
<?php
$id = (isset($_GET['id']))?$_GET['id']:'default value';
?>

 

This is all the code on the page. No head tags, body tags or html tags.

 

I use hostgator.com for hosting.

 

Thanks,

 

George

[kenrbnsn]

The "<?=" is a short hand for "<?php echo".

 

Try this:

<?php
$id = (isset($_GET['id']))?$_GET['id']:'default value';
echo $id;
?>

 

Ken

[mmitdnn]

Thanks Ken - that DID work 

 

George

 

PS. Not sure if I should "close" this topic (or how it's done).

But the issue has been resolved. Thanks again.