Warning: exec (): Unable to fork Solution

The error message is as follows:

Warning: Exec () functions function.exe c]: Unable to fork [net user] inE: \ oexam \ index. phpOn line2
Array ()-1

From this error, I again deeply understand why a CMD should be passed to a readable and Executable Directory during elevation of permission.

Solution: Let's talk about how to assign the execution permission to the users user by using cmd.exe. Of course this is not safe, but I did not pay attention to the server security configuration when I was testing it.