PHP函数运行一个函数（基于字符串）？

Question

Is there a PHP function or command that runs a function based on a string, array, or similar? Basically, if the string "time" is passed, I want time() to be returned. Ideally, I'd like this to also support passed parameters. I just want this to be for individual functions, though. I DON'T want to eval() an entire block of code, for obvious reasons.

Does anything like this exist--or, preferably--is it native in PHP?

Answer 1

Try call_user_func() http://php.net/manual/en/function.call-user-func.php

The first argument is a string representing the function name. The second argument can be a single argument, or an array of arguments.

Edit:

It will even support native functions like time(), as you asked. Try it out like so:

echo call_user_func( 'time' );