The difference between new static and new self in PHP

Source: Internet
Author: User
The difference between new static () and new self () in PHP

Self: Always points to the class itself, regardless of how many times the class has been inherited, which points to the class that originally used self;
Static: Pointing to a class that uses static, only through inheritance can the meaning of static exist be reflected, otherwise static and self are the same.

classA {publicfunctiongetStatic(){returnnewstatic();    }    publicfunctiongetSelf(){returnnewself();    }}classBextendsA{}var_dump((new B())->getSelf());//Avar_dump((new B())->getStatic());//B

Questions:
1, do not know the new static () and new self () what is the use;
2. If you want to use new self (), why not use new A ();

The above introduces the difference between new static and new self in PHP, including the contents of the content, I hope that the PHP tutorial interested in a friend helpful.

  • Contact Us

    The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

    If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

    A Free Trial That Lets You Build Big!

    Start building with 50+ products and up to 12 months usage for Elastic Compute Service

    • Sales Support

      1 on 1 presale consultation

    • After-Sales Support

      24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.