Options -Indexes 

RewriteEngine on

RewriteCond %{REQUEST_METHOD} !POST
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/(.+)\.php[^\s]* [NC]
RewriteRule ^ /%1 [R=301,NE,L]

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^ %{REQUEST_URI}.php [QSA,NC,L]
#RewriteRule ^(.*)/$ /$1 [L,R]
