Question

Sorry this is going to sound like a ridiculous question but can methods (not the constructor) in classes take parameters in the function declaration?

All the examples I’ve seen of methods (not constructor) pass no variables but call variables already declared in the class with $this->someVariable inside the function body.

Answer 1

Yes, you certainly can:

class Foo {
    public function sum($a, $b, $c) {
        $sum = $a + $b + $c;

        return $sum;
    }
}

$foo = new Foo();
echo $foo->sum(1,2,3); //Displays 6