php routing how to handle query parameters?

Question

I have a router class in my php project that works like this:

public function dispatch(){
     foreach ($this->routes as $url => $action) {

        if( $url == $_SERVER['REQUEST_URI'] ){

            if(is_callable($action)) return $action();

            $actionArr = explode('#', $action);
            $controller = 'My\\system\\controllers\\'.$actionArr[0];
            $method = $actionArr[1];

            return (new $controller)->$method();
        }
    }
}

And I define the routes like this:

My\system\classes\Registry::get("Router")->add('/My/admin/','AdminController#index');

So when the URL SERVER/My/admin is called the index method of the AdminController class is called.

My problem: How do I handle query strings?

I'd like to have a page with a form. On submit, the form gets sent to SERVER/My/admin/check, i.e. to the check.php page in the admin folder.

I defined the route like this

My\system\classes\Registry::get("Router")->add('/My/admin/check','AdminController#check');

but the URL isn't found, of course, because the query string is attatched to the URL. How should I handle this best?

What's your htaccess look like? A lot of router implementations will pass the route (url) into a query parameter meaning you don't need to account for other query parameters. — Rylee
– Rylee, Commented Sep 6, 2022 at 5:39

nickb · Accepted Answer · 2015-07-20 17:48:36Z

2

Before checking $_SERVER['REQUEST_URI'], remove everything past the first ?, if one is present. Use that value to check if it matches with $url. Something as simple as this will do the trick:

$request = $_SERVER['REQUEST_URI'];
if( ($pos = strpos($request, '?')) !== false) $request = substr($request, 0, $pos);

Any controllers that need to work with query parameters should be able to get them from $_GET, or at worst $_SERVER['QUERY_STRING'].

answered Jul 20, 2015 at 17:48

nickb

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Md Shayon · Accepted Answer · 2022-09-06 05:36:50Z

0

This example is from my project, how I handle this.

REQUEST_URI - The URI which was given in order to access this page; for instance, '/index.html'.

$full_router = $_SERVER['REQUEST_URI'];

strtok() splits a string (string) into smaller strings (tokens), with each token being delimited by any character from token.

$router = strtok($full_router, '?'); // This is how you can handle query parameters

Now you can match the URL with if statement

if($router === '/' ){
    include('/pages/home.php');
}

edited Sep 6, 2022 at 5:36

answered Sep 6, 2022 at 5:35

Md Shayon

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