URL Rewriting ​
URL rewriting is a way to change the accessible URL of your application into a different URL. You can think of it as a way to map one URL to another: a fancy way of redirecting requests made to a particular URL to another URL.
In the context of Leaf, URL rewriting is used to direct all requests to a single root file, usually index.php. This is a common practice in PHP applications, and it allows you to handle all requests in a single file. The cool thing is we can achieve this by adding a web server configuration depending on your server of choice.
apache
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule . index.php [L]nginx
try_files $uri /index.php;Why URL Rewriting? ​
By default, web servers like Apache and Nginx serve files directly from the file system. This means that when you make a request to a file like home.php, the server will look for a file named home.php in the root directory of the server and serve it.
Since Leaf comes with a router that allows you to define routes for your application, you need to direct all requests back to our Leaf app so that the router can handle them. This is where URL rewriting comes in.
When you add a URL rewriting rule to your server configuration, you are telling the server to direct all requests to a single file, usually index.php. This way, the router can handle the request and return the appropriate response.