Question

I want to add a custom php file to a WordPress to do a simple action.

So far I have in my theme index.php file:

<a href="myfile.php?size=md">link</a>

and the php is

<?php echo "hello world"; ?>

<?php echo $_GET["size"]; ?>

<?php echo "hello world"; ?>

The link, once clicked, displays:

hello world

Is WordPress taking over the $_GET function and I need to do some tricks to use it? What am I doing wrong?

Edit:

<?echo "hello world";?>
<? 
  if (array_key_exists('size', $_GET))
    echo $_GET['size'];
?>
<?echo "end";?>

Ouputs :

hello world

Answer 1

Not sure if this will show anything but try turning on error reporting with:

<?php
   error_reporting(E_ALL);
   ini_set('display_errors', true);
?>

at the top of your page before any other code.

Edit:

From the OP comments:

silly question, but are you sure you
are viewing the results of your latest
changes to the file and not a cached
copy of the page or something? Change
"hello world" to something else.
(Sorry grasping at straws, but this
happened to me before) – Zenshai

ahaha, the person that
were doing the changes didn’t changed
the correct file. It’s working now –
marcgg

peer programming fail ^^ – marcgg

That would be an "or something",
can’t tell you how many times i’ve
done something like that. Glad you
were able to figure it out in the end.
– Zenshai

I usually discover errors like these only when they begin to defy everything I know about a language or an environment.