Apache mod_rewrite is not working - php

Question

I am trying to redirect requests to http://www.site.com/customer to https://www.site.com/customer and hide .php extensions, but it's not working. These are my configuration files:
httpd.conf:
LoadModule rewrite_module modules/mod_rewrite.so
mysite.conf:
<Directory /var/www/site/customer>
Order Deny,Allow
Allow from all
</Directory>
Alias /customer /var/www/site/customer
.htaccess in /var/www/site/customer:
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}
#unless directory, remove trailing slash
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ $1 [R=301,L]
#redirect external .php requests to extensionless url
RewriteCond %{THE_REQUEST} ^(.*)\.php([#?][^\ ]*)?\ HTTP/
RewriteRule ^(.*)\.php$ $1 [R=301,L]
#resolve .php file for extensionless php urls
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [L]
Am I missing something?

Answer 1

Yep you are missing something ;)
Here are some modifications:
you forgot the redirect and last tag in HTTPS rule
you forgot the QSA directive to keep the query string when there's a redirect
So here it is, this might help, but maybe won't work 100% (but it's far still better than it was anyway):
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://$1 [QSA,NC,L]
#unless directory, remove trailing slash
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ $1 [QSA,R=301,L]
#redirect external .php requests to extensionless url
RewriteCond %{THE_REQUEST} ^(.*)\.php([#?][^\ ]*)?\ HTTP/
RewriteRule ^(.*)\.php$ $1 [QSA,R=301,L]
#resolve .php file for extensionless php urls
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [QSA,L]
Two hints:
If you're not in a hosted environment (= if it's your own server and you can modify the virtual hosts, not only the .htaccess files), try to use the RewriteLog directive: it helps you to track down such problems:
# Trace:
# (!) file gets big quickly, remove in prod environments:
RewriteLog "/web/logs/mywebsite.rewrite.log"
RewriteLogLevel 9
RewriteEngine On
My favorite tool to check for regexp:
http://www.quanetic.com/Regex (don't forget to choose ereg(POSIX) instead of preg(PCRE)!)