Options +FollowSymLinks
RewriteEngine On
#RewriteBase /
#RewriteCond %{REQUEST_FILENAME}  \.php  -f
#RewriteCond  %{REQUEST_URI}
#RewriteCond %{REQUEST_FILENAME} \.php$ -f
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteCond %{REQUEST_URI} !/$
RewriteRule ^(.*)update(.*)$ $1update.php$2 [L]