src/Point.php
public function __isset($name)
    {
        $name = strtolower($name);

        if ($name != 'x' && $name != 'y' && $name != 'z') {
            return false;
        }

        return isset($this->$name);
    }
public function __isset($name)
    {
        $name = strtolower($name);

        if ($name != 'x' && $name != 'y' && $name != 'z') {
            return false;
        }

        return isset($this->$name);
    }
public function __isset ( $ name ) { $ name = strtolower ( $ name ) ; if ( $ name != 'x' && $ name != 'y' && $ name != 'z' ) { return false ; } return isset ( $ this -> $ name ) ; }
Setter for x, y and z.
Setter for x y and z .