Question

Imagine

aFunction() {
    $foo = 123;
    // a lot more code
}

aFunction();
echo $foo; // undefined

Is there a way to put the procedure of aFunction into the scope of the caller?

Answer 1

No,

In order to get the value out of it you’d have to use one of the following:

1. have aFunction return the value
2. have the value passed into aFunction by reference
3. use a global