Global Keyword Problem

rgraves

Here's a strange problem I've been having:

I have a config.php file with various configuration variables in it. I also have a file with various functions used on the site. When I use the 'global' keyword within one of those functions to call a variable within config.php, it does nothing and I can't access that variable. It looks something like this:

function myFunction($var) {

  global $globalVar;

  ...
}

Is there a setting that I should have set to allow variables to be declared global this way? I've made sure the config.php file is included with a require_once statement and that seems to be working properly. I'm at a loss here.

laserlight

Is there a setting that I should have set to allow variables to be declared global this way?

No, as this is a language feature.

Provide the smallest and simplest script that demonstrates the problem. For example, this works for me:

<?php
function myFunction($var) {
    global $globalVar;
    echo '$var = ' . htmlspecialchars($var) . '<br />'
       . '$globalVar = ' . htmlspecialchars($globalVar);
}

$globalVar = 12;
myFunction(34);
?>

bradgrafelman

This works too:

class myClass {
    private $globalVar = 12;

public function myFunction($var) {
    echo '$var = ' . htmlspecialchars($var) . '<br />'
        . '$globalVar = ' . htmlspecialchars($this->globalVar);
}
}

$obj = new myClass;
$obj->myFunction(34);

rgraves

My code is of the style of laserlight's example. I'm trying to import these scripts into Drupal as PHP pages. They work fine on a separate server outside of Drupal. My first thought is maybe there was a PHP setting since everything with the scripts seem to work except for this global keyword.

Now that it's been confirmed that's not the case, it appears it may be Drupal related. Has anyone experienced something like this with Drupal? Or are there any other possible ideas?

I even tried manually copying the variables from the config file to the top of my functions file (in case the problem was related to including the config file) and it still doesn't recognize those variables within the function.