How to use Laravel7 framework in php?

As Web development becomes increasingly mature and needs diversify, using frameworks to develop Web projects has become an inevitable trend. As one of the most popular frameworks in the current PHP field, Laravel is widely used in Web project development of various sizes due to its excellent design concepts, complete and rich functions, easy-to-learn syntax and other advantages. This article will introduce how to use the Laravel7 framework to develop web projects.

Step One: Install Laravel7

To use Laravel7, you first need to make sure that PHP is installed on the machine. You can use the command php -v to check whether PHP and its version are already installed on the current machine. If there is no PHP in the current machine, you need to install it first. No detailed introduction will be given here.

Next, use Composer to install Laravel7. Composer is one of the most popular package dependency management tools in PHP, which can help us easily download, manage, and upgrade various PHP libraries and frameworks. To use Composer to install Laravel7, you only need to execute the following command in the terminal:

composer global require laravel/installer

The above command will install the Laravel installer globally. After the installation is complete, we can use the Laravel command to quickly create a Laravel project.

Step 2: Create a project

After installing the Laravel installer, we can use the laravel new <project-name> command to create a new Laravel project. For example, if we want to create a project named "myproject", we only need to enter the following command in the terminal:

laravel new myproject

This command will automatically download the Laravel7 framework and install it in the project named "myproject" in the directory.

Step 3: Configure the database

After creating the project, we need to perform some basic configuration on it to allow the Laravel7 framework to interact with the database. In Laravel, we can set some important configuration items in the ".env" file, such as database name, user name, password and other information.

Open the ".env" file in the "myproject" directory and find the following lines of code:

DB_DATABASE=
DB_USERNAME=
DB_PASSWORD=

Modify them to the relevant configuration of our local database:

DB_DATABASE=mydatabase
DB_USERNAME=root
DB_PASSWORD=root

After saving the changes, we can use the database in Laravel.

Step 4: Create the controller

In Laravel, the controller is the key component used to process requests and return responses. We can use the Laravel command line tool (php artisan) to create a simple controller. For example, if we want to create a controller named "UserController" in the "myproject" project, we only need to enter the following command in the terminal:

php artisan make:controller UserController

In the "app/Http/Controllers" directory, just A controller file named "UserController.php" will be created. In this file, we can define some methods to handle the request and return the response.

Step 5: Create routes

After creating the controller, we need to create some routes to map HTTP requests to the controller's methods. In Laravel, we can use the Route class to define routes. For example, if we want to create a route for the "UserController" controller in the "myproject" project, we only need to add the following code to the "routes/web.php" file:

Route::get('/users', 'UserController@index');

The above code will be "/ Create a GET request for the "users" path and map it to the "index" method of the "UserController" controller.

Step 6: Define the template

In Laravel, view templates are used to display data to users. We can create view templates using the Blade template engine. For example, if we want to create a view template named "users.blade.php" for the "UserController" controller in the "myproject" project, we only need to create a view template named "users.blade" in the "resources/views" directory .php" file, and then define the code to display user data in the file.

Step 7: Using the Controller

Now, we have completed the preparation of a simple Laravel7 project. We can create a controller named "UserController" and then create a view template named "users.blade.php" to display user data.

In the "myproject" project, use the php artisan serve command to start Laravel7's built-in development server, and access the "http://localhost:8000/users" path, you can see Go to a simple web page like "Laravel7 User Guide". The page displays the user data defined in the "UserController" controller.

Summary

Laravel7 is one of the most popular frameworks in the PHP field. It is widely used in various applications due to its excellent design concepts, rich and simple functions, and easy-to-learn syntax. A large-scale web project is under development. This article briefly introduces how to use the Laravel7 framework for web project development. Through seven simple steps, we can quickly create a simple Laravel7 project.

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