Question

I’m wondering is there anyway to create ‘Get-Set’ method only once that can be use to every attribute

The following code is not correct. Just to make sure you know what I’m looking for

class someClass {
    private $attrA;
    private $attrB;
    private $attrC;

    public function get($attr){
        return $this->$attr;
    }

    public function set($attr, $value){
        $this->$attr = $value;
    }
}

Answer 1

Yes, you can use the magic methods __get() and __set() in the exact way you describe.

More info on the official web site.