如何在PHP中覆盖两个函数中的变量

Question

function d20() {
$rollAll = false;
$roll = rand(1,20);

    if ($rollAll == false) {    
        echo $roll; 
    }
}

function rollAll() {
$rollAll = true;
    d20();
}

rollAll();

I want to make it so that whenever I call the rollAll function, $rollAll will be true and it won't echo the roll. Sorry if this problem seems really stupid, but I'm new to PHP.

Thanks.

Answer 1

@Rizier123 Answered just i pass the variable from rollAll to d20

function d20($rollAll) {

$roll = rand(1,20);

    if ($rollAll == false) {    
        echo $roll; 
    }
}

function rollAll() {
$rollAll = true;
    d20($rollAll );
}

rollAll();