How to use GET method in Laravel

Laravel is a popular PHP framework. As we all know, the HTTP GET method is the most common web request. In Laravel development, it is very common to use the GET method to obtain data. In this article, we will introduce how to use GET method in Laravel.

1. What is the GET method

HTTP GET is an HTTP request method used to obtain data. When we access a website page through a browser, the requests sent are all GET requests. The parameters it transmits are usually placed in the query string of the URL. In Laravel, we can define GET request parameters through routing.

2. Define GET routing in Laravel

Defining GET routing in Laravel is very simple, just use the get() method in the routing file.

The following is an example:

Route::get('user/{id}', 'UserController@show');

The above code indicates that a route named user is defined, which uses the show method of UserController as the handler. In this route, we use the {id} parameter to match the data in the URL. This parameter can be obtained using the $request object in the controller method.

3. Obtain GET parameters in the controller

In Laravel, you can obtain GET parameters through the $request object. In the method in the controller, we can get the GET request parameters like this:

public function show (Request $request, $id) {
    $name = $request->input('name');
    $age = $request->input('age');
    // ...
}

In the above code, we use Laravel's dependency injection to get the $request object. Next, we can get the incoming GET parameters by calling the input() method.

4. Use the GET method to obtain data

When using the GET method to obtain data, we usually need to pass parameters in the URL.

The following is an example:

Route::get('user/{id}', function ($id) {
    // 获取用户信息
    $user = DB::table('users')->where('id', $id)->first();

    // 返回用户信息
    return view('user.profile', ['user' => $user]);
});

The above code indicates that a route named user is defined. It will obtain the user information with an id equal to the {id} parameter in the route in the database and add it Passed to the view user.profile.

In the view, we can use the Blade template engine to display user information, as shown below:

<div>
    <h1>{{ $user->name }}</h1>
    <p>{{ $user->email }}</p>
    <p>{{ $user->age }}</p>
</div>

In the above code, we display user information based on the data in the $user variable.

5. Summary

The GET method is one of the most commonly used request methods in the HTTP protocol. It is usually used to obtain data. In Laravel, we can get data using the GET method by defining routes, getting the $request object, and using the Blade template engine.

Through the introduction of this article, I believe everyone has a certain understanding of how to use GET requests in Laravel, and I hope it will be helpful to your development work.

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