Re: Register globals and ini_set

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On Fri, July 8, 2005 7:50 am, Terry Romine said:

You *ARE* doing session_start at the top of each page, right?...

Ya gotta do that.

> I was setting the $_SESSION by:
> $_SESSION['var_name'] = "this";
> or
> $my_local = "this";
> $_SESSION['var_name'] = $my_local;

There *WAS* a bug in PHP [mumble] (4.1.10???) where the $_SESSION data was
"leaking" out to PHP as a "string reference" (never mind PHP has no such
data type).

You could detect it by dumping out $_SESSION and you would see an & in
front of all the strings.

So if you later did:

$var_name = '';

Then your $_SESSION['var_name'] was *ALSO* getting set to ''

> I had stopped using session_register() some time back.
>
> "Sporatically" meaning that some of my variables are working fine, while
> others seem to become empty when referenced by a later script. These
> scripts were working fine on the older PHP version. I'm sure it's just a
> quick determination as to what to change, and then I can do a global
> update across the site. There are about 20-30 websites that this affects,
> so you can see my frustration in trying to do this by bits and pieces. I
> had done a test file like this:
>
> test1.php:
> <?php
>   $_SESSION['check'] = "test 1";
>   echo($_SESSION['check']);
> ?>
> <a href='test2.php'>Click</a>
>
> and
> test2.php:
> <?php
>   echo($_SESSION['check']);
> ?>
> test1.php displays "test1" but test2.php displays nothing.

Looks to me more like the more mundane:
You didn't do session_start() at the beginning of both scripts.

Go to Jail.  Do not collect $400.

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