How is the construct function used in PHP?

The construct method is a special method in PHP that is automatically called when a class is instantiated. It is used to initialize the object’s properties or perform necessary operations when a class is instantiated.

The basic syntax of constructors is as follows:

class MyClass {
    public function __construct() {
        // 构造方法的代码
    }
}

In the constructor, parameters can be passed to initialize the object’s properties, and other initialization operations can also be performed. Constructors are typically used to carry out necessary settings when creating an object, such as connecting to a database or initializing properties. If a class does not define a constructor, PHP will automatically call a default constructor.