我如何$ _GET正确的ID

Question

picture.php

if (!isset($_GET['id'])) {
    header('location:/');
    exit();
} else if (isset($_GET['id'])) {
    print_r($_GET);
}

$_GET output

 Array ( [page] => picture ) 

.htaccess

RewriteEngine On
RewriteBase /
RewriteRule ^([A-Za-z0-9-]+)/?$ /index.php?page=$1 [L]
RewriteRule ^([A-Za-z0-9-]+)/picture/?$ /picture/?id=$1 [L]

URL format : http://local.com/42/picture/

Question : How to make the $_GET['id'] will print 42 and not the picture

Answer 1

The L flag causes a re-injection of the already rewritten URL into the rewriting process. So when /42/picture/ gets rewritten to /picture/?id=42 it then gets rewritten to /index.php?page=picture.

You can avoid this by putting a rule in front of your other rules that stops the rewriting process for every request that’s path can be mapped onto an existing file:

RewriteCond %{REQUEST_FILNAME} -f
RewriteRule ^ - [L]