Fat Free Framework configurations on a subdomain - php

Question

I am trying to deploy an Fat Free Framework app on a subdomain. It worked fine on my local server but I get a blank page on deploying it on a sub-domain on a live site. I believe I somehow got my configurations (.htaccess, config/routes) wrong but I've tried several but can't get it to work. My configs are:
.routes file
[routes]
GET /games/#gameid/#move = WebPage->getgames
.config file
[globals]
AUTOLOAD = app/;third_party/;third_party/phpQuery/
DEBUG = 0
UI = views/
ENCODING = utf-8
LOGS= tmp/cache/
.htaccess file
#mod_rewrite on
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L,QSA]
#Hotlinking Protection
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?subdomain.domain.com/.*$ [NC]
RewriteRule \.(js|css|jpg|gif|png|bmp|mp4|3gp|m4a|m4r|aac|mp3|ogg|wave)$ - [F]
#PHP code in HTML file
AddType fcgid-script .php .htm .html .phtml
I'm on PHP Version 5.3.28 Apache 2.3.7
Folder Structure
subdomain.domain.com (subdomain folder)
.htaccess file
index.php file
app folder
db folder
views folder
third_party folder
tmp folder
On my local server I have .htaccess file like this
Order Deny,Allow
Deny from all
Allow from 127.0.0.1
Allow from ::1
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* index.php [L,QSA]

Answer 1

This seems incorrect:
RewriteBase /subdomain.domain.com
I would change it to simply be this:
RewriteBase /
The reason being is RewriteBase only refers to the URL base of the server itself and not anything further “to the left” of that. Meaning if this is your main site URL:
http://subdomain.domain.com
Setting a RewriteBase /subdomain.domain.com would mean that the rules would only act on the URL of :
http://subdomain.domain.com/subdomain.domain.com
And to make it a bit clearer, one would only adjust RewriteBase / (an then the corresponding RewriteRule) if the code is running on a path “to the right” of the base URL. So let’s say you installed it in the directory mycoolapp/ and you wanted that to be accessible like this:
RewriteBase /mycoolapp/
And then you would have to adjust the RewriteRule for the index.php like this:
RewriteRule . /mycoolapp/index.php [L,QSA]
EDIT: Based on you providing the .htaccess for your local setup, you have this for your mod_rewrite:
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* index.php [L,QSA]
But on your subdomain setup you have this:
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L,QSA]
Why the radical difference? Just use the mod_rewrite stuff that works from your local setup. Specifically get rid of this line on your subdomain setup:
RewriteBase /
And change this line:
RewriteRule . /index.php [L,QSA]
To be this:
RewriteRule .* index.php [L,QSA]
So the final subdomain .htaccess should have this:
#mod_rewrite on
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* index.php [L,QSA]
#Hotlinking Protection
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?subdomain.domain.com/.*$ [NC]
RewriteRule \.(js|css|jpg|gif|png|bmp|mp4|3gp|m4a|m4r|aac|mp3|ogg|wave)$ - [F]
#PHP code in HTML file
AddType fcgid-script .php .htm .html .phtml

Answer 2

Apparently it was caused by a php error and because I had show errors turned off, I couldn't see it. It was caught by the support staff of my web host after I uploaded a fresh install of the app and got
Internal Server Error
Fatal error: syntax error, unexpected '['
Specifically my web hosting support staff said it had to do with PHP array dereferencing. I quote partly below
..it looks like a part of your scripts are using array dereferencing
which works on PHP 5.4+, and..
So we switched to PHP 5.4+ and bam everything went into place.
BTW I used the following .htaccess
#mod_rewrite on
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-l
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php [L,QSA]
No stress, no fuss.