Users cannot register and I cannot use a login check via php

[DaSpamer]

Hey,
Today I've upgraded my vbulletin 4.2.1 to vbulletin 5.
I really liked what It has and design.

Now I'm facing problem with registrations I get this error

Sorry, but the server is not responding properly to information requests. This may be a momentary problem. If you continue to receive this message and the site is otherwise functioning, please contact the site administrator.

I've checked the error log
And these are the 2 errors that are popping up (the first error, is shown hundreds over hundreds..)

[21-Oct-2013 19:20:41 Europe/Berlin] PHP Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/flashack/public_html/core/vb/string.php on line 750
[21-Oct-2013 19:20:41 Europe/Berlin] PHP Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/flashack/public_html/includes/vb5/frontend/controller/ajax.php on line 27

I'm really not a web developer, But I used to check user login by doing this.

<?
    require_once('global.php');
    if(isset($_POST['username']) && ($_POST['password']) && ($_POST['run']))
        $username = filter_var($_POST['username'], FILTER_SANITIZE_STRING);
        $password = filter_var($_POST['password'], FILTER_SANITIZE_STRING);
        $user = $vbulletin->db->query_first("SELECT * FROM " . TABLE_PREFIX . "user WHERE username ='".$username."'");
        $pass = $user[password];
        $vb_hash = md5($password . $user[salt]); //I'm sending password after doing md5 locally.
        if ($vb_hash==$pass)
        {
            // Do my stuff
        }
?>

And now it's don't work, so I noticed the the global function is found in the core folder so changed to this

<?
    require_once('core/global.php');
    if(isset($_POST['username']) && ($_POST['password']) && ($_POST['run']))
        $username = filter_var($_POST['username'], FILTER_SANITIZE_STRING);
        $password = filter_var($_POST['password'], FILTER_SANITIZE_STRING);
        $user = $vbulletin->db->query_first("SELECT * FROM " . TABLE_PREFIX . "user WHERE username ='".$username."'");
        $pass = $user[password];
        $vb_hash = md5($password . $user[salt]); //I'm sending password after doing md5 locally.
        if ($vb_hash==$pass)
        {
            // Do my stuff
        }
?>

But still doesn't work.

Here's my hosting information

Apache version	2.2.25
PHP version	5.5.3
MySQL version	5.5.32-cll

Is there any specific reason?
I couldn't find any solution, I only found this thread

http://www.vbulletin.com/forum/forum/vbulletin-5-connect/vbulletin-5-connect-questions-problems-troubleshooting/vbulletin-5-support-issues-questions/3998261-all-ajax-requests-return-500-internal-server-error

Which still didn't help much.


Have you guys tested vBulletin 5 on PHP 5.5.3?
I mean I follow the install instruction page (which says PHP 5.4 or greater), and based the thread above, users with php 5.3 are facing problems too.

[Wayne Luke]

1. Put your site in debug mode.
2. Edit /config.php
3. Change the line: $config['debug'] = false;
4. It should be $config['debug'] = true;
5. Go to /auth/login on your site and try to login.
6. What is the error shown on the screen?

Very little 4.X code will do anything with 5.X.

[DaSpamer]

Well I've did these steps,
We changed server settings, re-downloaded vb5 and installed again.
changed database again.
Debugged and still no help.

Debug Information
Page ID: 6
Parent ID: 4
Page Template ID: 6
Route ID: 13
Page Type: custom
Screen Layout ID: 1
Screen Layout Template: screenlayout_1
Channel ID:
Node ID:
Database Asserts: 0
AJAX Requests: 3
Facebook Active: No (Not enabled or no appid & secret set)
Style ID: 18
Templates: 14
preheader (parent)
screenlayout_1 (parent)
|----header
|----|----ad_header
|----|----ad_header2
|----|----search_popup
|----|----notices
|----widget_announcement
|----|----module_title
|----widget_pagetitle
|----widget_register
|----|----humanverify
|----footer
|----|----debug_info
ajax requests
/registration/checkusername
/registration/checkusername
/registration/registration