After moving from one provider to another I get white screen of death

[eluser]term25[/eluser]
I have moved from my localhost where everything works great to a production server and everything works as on my localhost without problems.

Then I have moved to another provider and problems started.

So, when I went to my homepage and I get a WSOD. I tried to remove the index.html file in the root and it works.

My question is why?

Is this problem of the server. What should they changed so I can leave index.html leave in my root?

I think it is better for security reason to have index.html in the root folder.

Please explain why index.html is causing the problems.

Thanks in advance.

[eluser]Aken[/eluser]
There's no reason to have both index.php and index.html, and definitely no "security benefits".

And it's not a "problem", just a server configuration. http://en.wikipedia.org/wiki/Webserver_directory_index

[eluser]term25[/eluser]
Yeah, you are right, thanks. On the old hosting I have also index.html and it is wokring so maybe they have index.php as priority in their server config. It's strange.

However, I have removed it and now the homepage works, but I have another problem when submitting forms or redirects in general.

I get WSOD when there is a redirect in the method/function. I have tried

redirect('admin', 'refresh');

and also

redirect('admin', 'location', 301);

and

redirect('admin');

but in all cases it still gives me only a white screen of death.

e.g. after loging at:

http://www.example.com/admin

it redirects me correctly to

http://www.example.com/admin/login

so I assume that redirect is OK.

But after submiting a form (and the validation is OK) it do not redirect me at all.

So I assume it might be a problem with submiting forms or something. But at the same time I am logged in so, the sessions are working.

Then I need to type manually http://www.example.com/admin again so I can go to my admin area.


Any idea what can cause this strange problem?

On the previous hosting provider it was working perfectly.

[eluser]Aken[/eluser]
White screen means there's an error, but displaying it is turned off. Search these forums or Google for enabling error display in PHP.

[eluser]term25[/eluser]
Ok after changing to development mode and showing all errors I am getting these errors:


A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /www/doc/www.example.com/home/application/language/english/form_validation_lang.php:1)

Filename: libraries/Session.php

Line Number: 672
A PHP Error was encountered



Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /www/doc/www.example.com/home/application/language/english/form_validation_lang.php:1)

Filename: helpers/url_helper.php

Line Number: 544


What is worng with form_validation_lang.php?

[eluser]Aken[/eluser]
Check for white space or other characters before the opening PHP tag in that form_validation file.

[eluser]term25[/eluser]
There is no whitespace in that file. I have checked it. Nothing before <?php

[eluser]term25[/eluser]
Everything was working great on the first host. I haven't change anything in this file after moving to the new server.

[eluser]Aken[/eluser]
Then try re-uploading it or something. That's where the error is coming from.

[eluser]term25[/eluser]
SOLVED!!!!!!!!!!!!

The #$%^& BOM was the problem. So, for anybody who is using editors like Sublime 2 etc. where you do not directly see this info e.g. UTF-8 without BOM or UTF-8 with BOM don't forget to save it WITHOUT BOM !!!

Anyway, thanks Aken for pointing me the right direction.