Detailed explanation of new self() in php_PHP tutorial

Detailed explanation of new self() in php

php new self() This usage is rare, and it is basically impossible to find detailed information about this usage. This article will simply make some notes now and will update it slowly in the future.

php new self() is generally used inside a class. Its function is to instantiate its own class. Here is an example to explain how to use it:

<?php
class phpernote{
	public function __construct(){
		echo 'php程序员的笔记！';
	}
	public static function getInstance(){
		new self();
	}
}
 
phpernote::getInstance();

Return results:

Notes from PHP programmers!

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