PHP Advanced Programming Example Analysis (Internal Notes)_PHP Tutorial

Preface, this note is mainly for people with higher technical level; mainly OOP.

1. Inheritance is important. Do not add __construct

randomly

What does it mean? If you want to add __construct in inheritance, you must pay attention. This may override its parent's __construct.

What should I do?

a. Use other methods to transfer variables; b. Add parent::__construct(); parent::getone(); to the __construct of the subclass instead of using $this

http://www.bkjia.com/PHPjc/477905.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/477905.htmlTechArticlePreface, this note is mainly for those with higher technical level; mainly OOP. 1. Pay attention to inheritance. What does it mean to not add __construct randomly? If you want to add __construct in inheritance, you must...