session_register和session_is_registered以及PHP 5.4+的问题

Question

I am an unexperienced programmer that haven't been up to speed with PHP & SQL in a long time as I've been working with designing the last 5-6 years, however I recently discovered that the admin pages of a few websites I am hosting stopped working after PHP updated to 5.4+. I searched around and found a number of posts on the topic but haven't managed to solve the issue in my case. Again I haven't been working with PHP in a long time so consider me a complete beginner :)

I would be forever grateful if someone could clarify what I need to do in order to get this up and running again. Also, I know there are better ways to re-code the whole thing but I am not interested in this, all I want is an easy fix to make it work again (if there is one, that is).

Here's the initial error message I get:

Fatal error: Call to undefined function session_is_registered() in XXX on line 41

And here's the code (as a picture, as I didn't manage to paste it properly):

http://www.voidfaith.net/test.jpg

After this we have all the adminpage-code and at the end we have below:

http://www.voidfaith.net/test2.jpg

Any help with how I must replace session_register and session_is_registered on row 25 and 33 would be really appreciated.

Answer 1

The documentation of session_is_registered() states very clear, on a reddish background:

Warning This function has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.

The same for the session_register() and session_unregister().

Use the super-global $_SESSION[] to store and get the session values.

$_SESSION['name'] = 'John Doe';
// instead of:
//    $name = 'John Doe';
//    session_register('name');

unset($_SESSION['name']);
// instead of:
//    session_unregister('name');

isset($_SESSION['name'])
// instead of:
//    session_is_registered('name');