How to execute a request in laravel

How to execute the request request in laravel? This article introduces you to the method of executing requests in laravel, and friends who need it can refer to it, hoping to help you.

Let's take a look at what is request first.

A client (such as a Web browser) communicates with a server (Web server) using the HTTP protocol. The client sends a request to the server, and the server returns a response (response) in response to the request. There are many ways to execute the request in the HTTP protocol, the most common ones are POST and GET. An HTTP request consists of two parts: a header containing data related to the request and a body containing data to be processed by the server.

The following describes how to transfer the data to be processed by the server.

How to pass the value in POST/GET in Laravel?

The request may include data to be processed by the server.

For example, if your user name is username = John.

Requests can be sent from HTML forms.

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Use an element such as input to specify the data name in the name property. The user's input value is set in the value property.

When you submit this form, every data is included in the request.

For the POST method, the body of the request is as follows.

Other data &username=John& other data

For the GET method, the query string contained in the URL is as follows:

http://localhost:8000/users? Other data &username=John& other data

In addition, GET method requests are usually sent from HTML links.

You can specify the URL in the href attribute of the A element, but the data is included in the query string.

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In the controller operation, we get data from Laravel request instance.

You can receive the request instance as a parameter of the operation, or you can get it by calling the auxiliary function request ().

You can get data from a request from an instance in the following ways.

$request->all(); //Get all data as associative array. $request->only([ 'username', 'password']); //Use only some data as associative arrays. $request->except(['credit_card']); //Only get some data (not specified data) as associative array. $request->input('username'); //Get individual data through input. $request->username; //Get individual data through dynamic attributes request('username'); //Use the auxiliary function request () to get individual data.

Make a request to Laravel

For example, let's use the GET method to request multiple data.

Add the following routes to the routes/web.php file. Route::get('/users', function () { $request = request(); //Get the request instance $data = $request->all(); //Get all data as associative array. return $data; //Returns the obtained associative array (converted to JSON) });

Visit http://localhost:8000/users from a browser? first_name=John&last_name=Do

JSON is shown below to confirm that you received the data.

{"first_name":"John","last_name":"Doe"}