Brief Introduction to PHP and brief introduction to PHP

Brief Introduction to PHP and brief introduction to PHP

PHP is a Hypertext Preprocessor.

Operating principle
Script Language embedded in html
What are the integrated environments?
Wampserver smapp phpstudy appserver ,,
Php engine (7.0) mysql (database) apache (service)
Access:
Localhost local server name/php file name
127.0.0.1 local IP Address/php file name
Note;
All php code is written to the www directory.
Development tools:
Vim subline notepad ++ phpstrom webstrom dw NetBeans
Php information:
Phpinfo (); displays all php Information
It is modular, which module is required, and which module is enabled

Php file must end with. php

You can use the short label style.

Modify this item through the configuration file php. ini.

Short_open_tag = On

Remember to restart the service after modifying the configuration file