phpinfo

Function name: phpinfo()

Function description: The phpinfo() function is used to output the current PHP information.

Applicable versions: All versions of PHP.

usage:

 phpinfo();

Example:

 <?php // 输出当前PHP 信息phpinfo(); ?>

Explanation: The phpinfo() function is used to obtain and display the configuration information of the current PHP, including PHP version, compilation options, loaded extension modules, server information, etc. It is a very useful tool that helps developers understand the details of the PHP running environment.

Using the phpinfo() function is very simple, just call the function in PHP code. After calling the phpinfo() function, an HTML page containing PHP information is generated and output to the browser. The relevant configuration information of PHP and the server information will be displayed on the page.

The code in the example outputs details of the current PHP. You can copy the code into a PHP file and access the file in your browser to see a detailed page of PHP information.

It should be noted that since the output of the phpinfo() function contains sensitive information, such as server paths, database passwords, etc., you should be cautious when using it in a production environment to avoid exposing this information to potential attackers. Normally, the phpinfo() function should be used only during the development and debugging phases.