Methods in PHP to prevent direct access or viewing or downloading of the config.php file_PHP Tutorial

Or is it that PHP's design itself avoids directly viewing the file content? From a security perspective, what protection measures should be taken for this system-level file?
Netizen’s perfect answer
After research, we found the following common methods:

1 Define an identification variable in the program

Copy code The code is as follows:

define('IN_SYS', TRUE);

2 Get this variable in config.php

Copy code The code is as follows:

if(!defined('IN_SYS')) {
exit('Access Forbidden' );
}

http://www.bkjia.com/PHPjc/325674.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/325674.htmlTechArticleOr, the design of PHP itself avoids directly viewing the file content? From a security perspective, what protection measures should be taken for this system-level file? Perfect answers from netizens After research...