register_globals, $GLOBALS, classes, help!

[ppowell]

I created an entire suite of PHP scripts using the values of $GLOBALS to control the functionality of my entire set of scripts.

Until I moved it to a client site where register_globals is turned OFF.

Of course, everything in $GLOBALS is no longer available, but how do I get everything from $GLOBALS back into their individual variables in order to be able to not have to write the following code snippet (and I am not kidding!!) 450 times:

foreach ($GLOBALS as $globalVar) {
 if (is_array($globalVar)) {
  foreach ($globalVar as $key => $val) if (!isset(${$key})) ${$key} = $val;
 } else {
  if (!isset(${$globalVar}) ${$globalVar} = $GLOBALS[$globalVar];
 }
}

I would like to embed this script into a globally-available function since this script currently resides in a globally-included .inc.php file I wrote, however, the hierarchy of my setup is nearly pure OO. So you have scripts with average of 7 classes, each having an average of 15 methods/class. And there are about 5 scripts per project per client.

Get the picture? What do I do? This code works but not in method or function scope, obviously.

Phil

[devinemke]

if you want to simulate register_globals=On you could always do:

extract ($_ENV);
extract ($_GET);
extract ($_POST);
extract ($_COOKIE);
extract ($_SESSION);

this could be in a common included file. note that the precise order of these extracts in important. it follows the default "EGPCS" variable order in the php.ini file which controls how global variables overwrite each other.

[ppowell]

Thanx, sadly, that does not fix my problem either.

Consider this:

class Blah {
  function Blah() {
    // whatever
  }

  function doBlah() {
    $image_creation_month = '02';
    $this->stuff = createDateGroupHTMLGenerator('image_creation_month');
  }

}

And consider this:

function createDateGroupHTMLGenerator($myMonthName) {
 global ${$myMonthName};
  print_r("$myMonthName = ${$myMonthName}");
 }

On the production server (PHP Version 4.1.2 on Red Hat 7.3) I get this:

image_creation_month = 02

But on the development server (PHP Version 4.3.2 on Red Hat 7.3) I get this:

image_creation_month = 

The "global" declaration from class-method to function works in one version (4.1.2) but fails in another (4.3.2).

Without changing large blocks of code, what on earth do I do?

Phil

[devinemke]

sorry, a little slow with OO. your classes/methods/functions access variables from the global scope, yes? then wouldn't your existing code work by manually placing all variables that would normally be in the global scope with register_globals=on back into the global scope with register_globals=off?

[ppowell]

Yes but I had to force it to happen:

foreach (array('image_creation_month', 'image_creation_day', 'image_creation_year') as $val) {
 $GLOBALS[$val] = ${$val};
}

At least I only (for now) have to put that into one class method

Phil

[devinemke]

is it not possible to use your own custom php.ini file (with register_globals=on)? a custom php.ini in the same directory as the script will override the system php.ini.

[ppowell]

I can't, i am not given permissions to do that 🙁

however, what I did do what to create the necessary code snippets, one in global scope and one specific to the functionality of one class method, to ensure passing of global data.

Phil

[swr]

Originally posted by ppowell

  function doBlah() {
    $image_creation_month = '02';
    $this->stuff = createDateGroupHTMLGenerator('image_creation_month');
  }

I'm surprised that ever worked, considering $image_creation_month would be local to that function (you didn't "global $image_creation_month;" at the top of the function).

[ppowell]

I can't make $image_creation_month local because it may or may not exist, depends solely on earlier logic in the same method.

What I wound up doing was this:

global $phpVersionInt; // SET IN GLOBAL .inc.php FILE
if ($phpVersionInt > 412)
 $GLOBALS[$myVar] = ${$myVar};

where $myVar = 'image_creation_month' or 'image_creation_day' or whatever.

Phil