How to get Laravel's request parameters

Learn how to get query parameters in Laravel with an example.

Laravel's request parameters can be accessed through the $request object. This object provides methods to retrieve all incoming request data in an HTTP request, including query string parameters, form fields, route parameters, and files. The $request object can be accessed via the controller action or a Request class.

Using the $request Object

When working in a controller action, the $request object can be used directly. Here is an example of how to retrieve the value of a query string parameter named name:

public function show(Request $request)
{
    $name = $request->query('name');
    // ...
}

The query() method of the $request object retrieves the value of a query string parameter. If the parameter does not exist, the query() method will return null.

The $request object also provides a query() method that accepts a default value as its second argument. The default value will be returned if the query string parameter does not exist. Here is an example of how to use the query() method with a default value:

public function show(Request $request)
{
    $name = $request->query('name', 'Guest');
    // ...
}

In this example, the $name variable will be set to Guest if the name query string parameter does not exist.

Using the Request Class

The Request class provides a global accessor to retrieve request data. It can be used to access query string parameters, form fields, route parameters, and files. Here is an example of how to use the Request class to retrieve the value of a query string parameter named name:

public function show()
{
    $name = Request::query('name');
    // ...
}

The Request class also provides a query() method that accepts a default value as its second argument. The default value will be returned if the query string parameter does not exist. Here is an example of how to use the query() method with a default value:

public function show()
{
    $name = Request::query('name', 'Guest');
    // ...
}

In this example, the $name variable will be set to Guest if the name query string parameter does not exist.