How to instantiate static methods in php

php Steps to instantiate a static method: 1. Create an instance of the "Example" class and define a "staticMethod" static method; 2. Use the "new" keyword to instantiate the class "Example" as An object "$instance"; 3. Call the static method through the "$instance::staticMethod()" syntax; 4. Run the code and output "This is a static method.", indicating that a static method is successfully instantiated.

The operating environment of this article: Windows 10 system, php8.1.3 version, dell g3 computer.

PHP is a very popular programming language that supports object-oriented programming features. In PHP, we can use classes to define the properties and methods of objects. In a class, we can define static methods that can be called directly through the class name without instantiating the object.

However, sometimes we may want to instantiate a static method for use elsewhere. In this article, I will explain how to instantiate a static method in PHP and provide some examples to illustrate its usage.

To instantiate a static method, in PHP, we need to use special syntax. We need to use the "::" operator to call static methods and the "new" keyword to instantiate an object.

Here is an example that shows how to instantiate a static method:

class Example {
public static function staticMethod() {
echo "This is a static method.";
}
}
// 实例化一个对象
$instance = new Example();
// 调用静态方法
$instance::staticMethod();

In the above example

1. we define a method named Example class and defines a static method named staticMethod in it.

2. We use the "new" keyword to instantiate the class Example into an object $instance

3. Through the $instance::staticMethod() syntax Call static methods.

4. When we run the above code, "This is a static method." will be output. This indicates that we successfully instantiated a static method.

In addition to instantiating static methods, we can also call static methods in another way. We can call static methods directly using the class name without instantiating the object. Here is an example:

class Example {
public static function staticMethod() {
echo "This is a static method.";
}
}
// 直接调用静态方法
Example::staticMethod();

In the above example, we use the Example::staticMethod() syntax to directly call the static method without instantiating the object. At this point, "This is a static method." will still be output, indicating that we successfully called the static method.

Summary

As can be seen from the above example, although static methods usually do not need to instantiate an object to call, we can still use special syntax to instantiate static methods methods and use them elsewhere. This feature can be very useful in certain situations and is fully supported in PHP.

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