[phpinfo() is a debug functionality that prints out detailed information on both the system and the PHP configuration.]
[Go here: https://41.242.90.8/info.php] An attacker can obtain information such as: Exact PHP version. Exact OS and its version. Details of the PHP configuration. Internal IP addresses. Server environment variables. Loaded PHP extensions and their configurations and etc.
https://hackerone.com/reports/1848780