是否可以使用GET数据在PHP中调用特定函数？ [重复]

Question

This question already has an answer here:

• How to call PHP function from string stored in a Variable 15 answers

I have a file functions.php which has multiple functions like:

function do_this(){
}

function do_that(){
}

Now, I am thinking doing something weird like calling that function from URL:

functions.php?func=do_that

Now, I added this lines of code to functions.php

if(isset($_GET["func"])){
    $func = $_GET["func"];
    //How to call that function with name "$func"

}

Any great brains out there? Let me know. If that's not possible, then also lemme know. Coz I have to think of a new approach in my work.

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Answer 1

All you need to do is to call the function as you get the $_GET variables like this:

if(isset($_GET["func"])){
    $func = $_GET["func"];
    $func();

}