Php security configuration close php Execution System command function

The four functions of php, exec, shell_exec, system, and passthru, can execute system commands and pose a threat to system security. If they are not used, they can be disabled.

The Code is as follows:	Copy code
Vim/etc/php. ini

Remove the comments before disable_functions and edit the content as follows:

The Code is as follows:	Copy code
Disable_functions = exec, shell_exec, system, passthru, popen

Friendly reminder, some friends say they want to filter eval functions. In php, this is not a function that cannot be banned in disable_functions.