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Why is thinkphp syntax like this?

WBOYOriginal: 2023-05-28 22:52:39495browse

Difficult to understand?

ThinkPHP is an open source PHP development framework. It provides many convenient functions and tools, which can greatly improve the efficiency of PHP development. However, when using ThinkPHP for development, many people will encounter a problem: Why is thinkphp syntax so difficult to understand?

In fact, thinkphp syntax is not difficult. As long as you master some basic concepts and skills, you can easily use it for development. Next, let’s take a look at the syntax of thinkphp.

First, understand the MVC design pattern

Before using ThinkPHP for development, the first thing to understand is that it uses the MVC design pattern. MVC is a software architecture pattern used to separate the input, processing, and output of an application to better manage the structure and logic of the code. ThinkPHP's MVC design pattern consists of three components:

Model: responsible for processing the addition, deletion, modification, and query of data;
View: used to display data and users Interface, minimize the mixing of logic code and page code;
Controller (Controller): Mainly responsible for processing business logic and connecting views and models.

After understanding the MVC design pattern, we can better understand the code structure of thinkphp and develop applications more easily.

Second, master the thinkphp controller

ThinkPHP’s controller is the entrance to the entire application and is responsible for receiving requests from users and processing them accordingly. In a controller, many methods can be defined to handle different requests. For example, we can define the index method in the controller to display the homepage:

<?php
namespace appindexcontroller;

class Index
{
    public function index()
    {
        return 'Hello,ThinkPHP5!';
    }
}

Enter http://localhost/index.php/Index/index in the browser to access the index method defined in the controller index method.

Third, understand the thinkphp model

In ThinkPHP, the model is used to interact with the database to perform data addition, deletion, modification and query operations. Before using the model, we need to do some configuration:

Create a model directory in the application directory;
Create a User.php file in the model directory to define users Model.

<?php
namespace appmodel;

use thinkModel;

class User extends Model
{
    protected $table = 'user';

    public function getUserByPhone($phone)
    {
        return $this->where('phone', $phone)->find();
    }
}

In the above code, we define a user model User and a getUserByPhone method to query user information based on mobile phone number. In the method, we use the $this->where() method to perform database query operations.

Fourth, learn thinkphp’s views

In ThinkPHP, views are used to display data and user interface. In the controller, we can output HTML code and data to the browser through the view. For example:

<?php
namespace appindexcontroller;

class Index
{
    public function index()
    {
        $data = [
            'name' => 'ThinkPHP',
            'url' => 'https://www.thinkphp.cn/',
        ];
        return view('index', $data);
    }
}

In the above code, we load a view named index through the view() method and pass an array parameter $data.

Use c8a5e98dfceb71a6d916039f09b30610 in the view to output PHP variables and codes. For example, the values of the $name and $url variables can be output in the view like this:

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title><?php echo $name ?></title>
</head>
<body>
    <h1><?php echo $name ?></h1>
    <a href="<?php echo $url ?>"><?php echo $url ?></a>
</body>
</html>

Fifth, learn thinkphp routing

In ThinkPHP, routing refers to the URL in the user request The process of mapping paths into a controller class and methods. There are usually two ways of routing:

Static routing: mapping fixed URL paths to specified controller classes and methods;
Dynamic routing: based on dynamic parameters in user requests , to dynamically map controller classes and methods.

In ThinkPHP, routes are defined in the application/route.php file. For example, we can define a simple route in the routing file:

<?php
use thinkacadeRoute;

//静态路由
Route::get('hello/:name', 'index/hello');

//动态路由
Route::get(':controller/:action', 'index/:controller/:action');

In the above code, we have defined a static route and a dynamic route. The :name parameter in static routing is a dynamic parameter that can be obtained through $request->param('name') in the controller. The :controller and :action parameters in dynamic routing correspond to the names of the controller and method respectively.

Summary

Through the above introduction, I believe everyone should have some understanding of the syntax of thinkphp. In fact, the syntax of thinkphp is not difficult. As long as you master some basic knowledge and skills, you can develop it easily. If you want to learn thinkphp more deeply, you can refer to the official documentation and other related materials.

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