Does php have private static methods?

Private static methods can be defined in PHP. The method is: 1. Create a PHP sample file; 2. Use the "class" keyword to define a MyClass class; 3. Call the private static method inside the class. .

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

Private static methods can be defined in PHP. Private static methods are only accessible within the class in which they are defined and cannot be called from outside the class or from subclasses.

The following is an example that shows how to define and use private static methods:

class MyClass {
    private static function privateStaticMethod() {
        echo "This is a private static method.";
    }
    public static function publicMethod() {
        // 在类内部调用私有静态方法
        self::privateStaticMethod();
    }
}
MyClass::publicMethod();  // 输出：This is a private static method.
MyClass::privateStaticMethod();  // 错误：无法直接从类外部调用私有静态方法

In the above example, privateStaticMethod() is a private static method, which can only be used inside the MyClass class use. In the publicMethod() method, we use self::privateStaticMethod() to call the private static method inside the class.

It should be noted that private static methods cannot be called directly from outside the class or from a subclass. These methods can only be accessed and used inside the class. This encapsulation ensures that private static methods are only used by the class in which they are defined, providing better security and control.

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