How to use $_GET with mod_rewrite and AltoRouter - php

Question

I am having issues getting $_GET variables with mod_rewrite enabled. I have the following .htaccess:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php [L]
and I am using "AltoRouter" for routing.
So an example of a Route that I might have is /login?redirect=localhost%2Fnetwork%2Fdashboard which would be rewritten as /login.
What I am trying to do is get $_GET['redirect'] and I cannot seem to do this. Can anyone help? Apologies in advance for a bit of a code dump.

Answer 1

You don't continue to use $_GET with AltoRouter.
Look here and here
Your problem may be that you are not generating URLs through AltoRouter.
Alto Router calls this "reverse routing" - look at the source:
/**
* Reversed routing
*
* Generate the URL for a named route. Replace regexes with supplied parameters
*
* #param string $routeName The name of the route.
* #param array #params Associative array of parameters to replace placeholders with.
* #return string The URL of the route with named parameters in place.
*/
public function generate($routeName, array $params = array()) {
The way to get params in the URL:
$router = new AltoRouter();
$router->map( 'GET', '/', function() { .. }, 'home' );
// assuming current request url = '/'
$match = $router->match();
/*
array(3) {
["target"] => object(Closure)#2 (0) { }
["params"] => array(0) { }
["name"] => 'home'
}
*/
Another example
$router = new AltoRouter();
// map homepage
$router->map( 'GET', '/', function() {
require __DIR__ . '/views/home.php';
});
// map user details page
$router->map( 'GET', '/user/[i:id]/', function( $id ) {
require __DIR__ . '/views/user-details.php';
});
// match current request url
$match = $router->match();
// call closure or throw 404 status
if( $match && is_callable( $match['target'] ) ) {
call_user_func_array( $match['target'], $match['params'] );
} else {
// no route was matched
header( $_SERVER["SERVER_PROTOCOL"] . ' 404 Not Found');
}

Answer 2

This function helped me:
public static function _GET(){
$__GET = array();
$ru = $_SERVER['REQUEST_URI'];
$_get_str = explode('?', $ru);
if( !isset($_get_str[1]) ) return $__GET;
$params = explode('&', $_get_str[1]);
foreach ($params as $p) {
$parts = explode('=', $p);
$__GET[$parts[0]] = isset($parts[1])? $parts[1] : '';
}
return $__GET;
}
and:
$__GET = App::_GET();
$url = urldecode( $__GET['redirect'] )

Answer 3

Old question but you can get the GET variables the same way before with $_GET, but you have to still match the route. I.e., if the route isn't matched your script doesn't proceed.
The route in altorouter for:
/login?redirect=localhost%2Fnetwork%2Fdashboard
Would be (you can use just GET or POST if you like) :
$router->map('GET|POST','/login/*', 'controllerforthisroute', "login");
After you can do <?php echo $_GET['redirect'] ?> and get:
localhost/network/dashboard

Answer 4

Old question, but it seems it's not so easy to deal with Altorouter & query string parameters.
As explained here by the author, it's not suitable to output the query string parameters in Altorouter's $match['parameters'] to respect REST principles.
Query string parameters have to be threated as external data, not part of Altorouter data.
Here's a simple solution to retrieve the URL query string & register parameters in PHP global $_GET:
// Register URL query string parameters in $_GET since Altorouter ROUTE doesn't deal with these.
$parts = parse_url($_SERVER['REQUEST_URI']);
if (isset($parts['query'])) {
parse_str($parts['query'], $_GET);
}
// now we can use $_GET
// echo $_GET['something'];