php what means the ? code example

Example 1: what is php

Q: What is PHP?
  
A: PHP is a general-purpose scripting for the scripting of web developments.
It was originally produced in 1994 by Rasmus Lerdorf, a Danish Canadian
programmer. The PHP Group is now producing the PHP reference implementation.
PHP used to stand for Personal Home Page, now it stands for Hypertext
Preprocessor.
  
Implementation language: C (primarily; some components C++)
Stable release: 8.0.2 / 4 February 2021; 4 days ago
Developer: The PHP Development Team, Zend Technologies
Typing discipline: Dynamic, weak since version 7.0: Gradual
Designed by: Rasmus Lerdorf
Memory limit: 128 megabytes

Example 2: What is PHP

PHP is a server side scripting language. It is open source. It is embedded language.

Example 3: what is PHP

PHP is a general-purpose scripting language especially suited to web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1994; the PHP reference implementation is now produced by The PHP Group
Implementation language: C (primarily; some components C++)
Stable release: 7.4.11 / October 1, 2020; 5 days ago
Preview release: 8.0.0 Release Candidate 1 / October 1, 2020; 5 days ago
Typing discipline: Dynamic, weak since version 7.0: Gradual
Designed by: Rasmus Lerdorf
Developer: The PHP Development Team, Zend Technologies