I would like to rename my URL like this :

http://localhost/loli/member/private?id=474 = http://localhost/loli/member/private/474

however I'm a new coder and I don't understand why that does work while I saw some tutorial doing this on the same way.

here is my .htaccess code :

Options All -Indexes

RewriteEngine On 
RewriteCond %{REQUEST_FILENAME} !-f

RewriteRule ^([^\.] )$ $1.php [L]

RewriteRule ^private/([0-9] )$ $private?id=$1 [L]

PHP code using get on URL : (current page message.php sended it into private.php)

     <?php       

    // $allUsers = 'SELECT * FROM members WHERE name LIKE "