call_user_func_array不接受意外的函数参数

Question

I have a function which accepts no parameters, i.e. function doSomething(){...}.

If I run, call_user_func_array('doSomething', array('param1' => 'something')); it doesn't return an error.

Can I make it force an error like, "This function should not accept parameters".

Answer 1

It's perfectly possible to send more parameters to a user-defined function than the function signature defines. That's because you can use additional code within your function to handle these, or simply ignore them.

function doSomething(){
    if (func_num_args() > 0) {
        throw new Exception('Too many arguments');
    }
    ....
}

Use something like the above to test the arguments that have been passed to your function