Untitled

RewriteEngine On 
RewriteBase /
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)\.php [NC] 
RewriteRule ^ %1 [R=301,L] 
RewriteCond %{REQUEST_FILENAME} !-d 
RewriteCond %{REQUEST_FILENAME}.php -f 
RewriteRule ^(.*?)/?$ $1.php [NC,L]