Intermittent Blank Page

**Jake Bunce** · Thu 18 Sep '08, 12:17pm

Try adding this line to your includes/config.php file to see if the white page shows any specific errors:

Code:

ini_set('display_errors', true);

Does it show any error messages now?

If that didn't help then try adding this line to the same file to disable plugins:

Code:

define('DISABLE_HOOKS', true);

If that didn't fix it then try reuploading the original PHP files from the vBulletin zip file.

It might also be a memory limit problem. Try adding this to the config file:

Code:

ini_set('memory_limit', -1);

**PGAmerica** · Wed 24 Sep '08, 12:00pm

Let me start by saying "Thank You" for responding so quickly. I really appreciate it.

Originally posted by Jake Bunce

Code:

ini_set('display_errors', true);

I added this line right after the <?php in my "includes/config.php file. I did not get any error messages and the page remained blank.

Originally posted by Jake Bunce

Code:

define('DISABLE_HOOKS', true);

I added this line right after the <?php in my "includes/config.php file (removing the previous lines that you suggested). Again, I received no error messages and the page remained blank.

Originally posted by Jake Bunce

Code:

ini_set('memory_limit', -1);

I added this line right after the <?php in my "includes/config.php file (removing the previous lines that you suggested). It displayed the page just fine, but it gave me a popup message that said "a script on this page is causing internet explorer to run slowly". It gave me an option to stop running the script. If I choose "yes" or "no, the page finishes loading and everything seems to work. However, the page and all others pages load extremely slowly.

Let me sum up. This is not happening on every thread, just a few. This particular thread is happening every time, but other threads are working some times and not working other times. This is not happening with every user. It is happening with 1 particular user and other users get a "hit or miss" on the threads that are having trouble.

Disabling all the plugins did not solve the problem so I do not think they are the issue. None of my original vbulletin 3.7.3 PL1 files have been modified at all (except in configuring the config.php file). I have re-uploaded all the files anyway, replacing the originals and that did not solve the problem.

Ideas?

**Jake Bunce** · Wed 24 Sep '08, 1:21pm

Maybe a style problem? Try to reproduce it on a default style:

Admin CP -> Styles & Templates -> Style Manager -> [Add New Style]

Create a new style with no parent. Then click that style's name in the Style Manager to view your forum with that style. If the problem goes away on the default style then you know it's a style problem at which point you need to systematically revert your custom templates to isolate the problem.

**PGAmerica** · Wed 24 Sep '08, 1:26pm

That is a fair enough statement. I had not thought of that. But would that not affect everybody using that style?

**PGAmerica** · Wed 24 Sep '08, 1:48pm

OK, I have created a new style with no parent. I have made no modifications to this new style at all.

I logged in as myself and went directly to that thread and all displays fine. I logged out & cleared my cookies and then logged back in as the user that is having the problem. When I went back to that thread, I got the same blank page.

I tried this in, IE 7, IE 8, Firefox 2, Firefox 3 and Safari. All browsers give the exact same symptom using the new blank style.

Does this mean it is not a plugin problem and not a style problem?

Ideas?

**Jake Bunce** · Wed 24 Sep '08, 2:15pm

You mentioned a browser error about a slow script. Do you allow HTML in posts or signatures? Maybe there is some bad code in some one's post. Try disabling HTML:

Admin CP -> Forums & Moderators -> Forum Manager -> Edit Forum -> Allow HTML

Admin CP -> Usergroups -> Usergroup Manager -> Edit Usergroup -> Signature Permissions -> Allow HTML

**PGAmerica** · Wed 24 Sep '08, 2:57pm

OK, I went into the ACP | Forum Manager and made sure that html was turned off. Then I did the same thing in all the usergroups. Granted, there were only a few that even had it enabled.

Now, when I goto that thread as myself, it still displays properly. However, when I login as this user and goto that thread, I get the following error message.

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 8174 bytes) in /Path/to/My/showthread.php on line 1268

**PGAmerica** · Thu 25 Sep '08, 7:20am

Any ideas what is causing the problem?

BTW, I added ini_set('memory_limit','128M') to the config.php file (so that the user can at least view the thread) and it works, but still pops up that error message I mentioned earlier.

When you had me add ini_set('memory_limit', -1); to the config.php file, does that turn off the memory limit instead of capping it at 128MB like I did?

**Jake Bunce** · Thu 25 Sep '08, 10:55am

That particular line is this:

Code:

		$ids .= ",$post[postid]";

It's part of a while loop that parses through the posts in the thread. Does that thread have a lot of posts? That might explain the memory_limit. You can increase the memory limit as you have done, or you can disable it by setting it to -1.

**PGAmerica** · Thu 25 Sep '08, 11:03am

Originally posted by Jake Bunce

That particular line is this:

Code:

        $ids .= ",$post[postid]";

I am not sure what to do with this. What is this line? Is it causing my problem? How do I fix it?

**Jake Bunce** · Thu 25 Sep '08, 12:18pm

I posted that line of code to try to explain what the problem might be.

Does that thread have a lot of posts? That might explain the memory_limit error. You can increase the memory limit as you have done, or you can disable it by setting it to -1.

**PGAmerica** · Thu 25 Sep '08, 12:43pm

Originally posted by Jake Bunce

I posted that line of code to try to explain what the problem might be.

I understand that is why you did it, but I do not understand what it means. I am not a programmer.

Originally posted by Jake Bunce

Does that thread have a lot of posts? That might explain the memory_limit error. You can increase the memory limit as you have done, or you can disable it by setting it to -1.

That particular thread has about 1400 posts in it. I have others that are over 7000 posts that is not displaying this problem.

**Jake Bunce** · Thu 25 Sep '08, 9:27pm

That code is part of a while loop that parses through the posts in the thread... one iteration per post.

I am out of suggestions. I still say increase the memory_limit.

**PGAmerica** · Fri 26 Sep '08, 7:14am

Originally posted by Jake Bunce

I am out of suggestions. I still say increase the memory_limit.

I did increase the memory limit. It allowed the post to be displayed, but I still get that script error.

I have no idea how to find out what script is causing the problem. I already turned off all the plugins.

Intermittent Blank Page

Intermittent Blank Page

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