How do I overload arithmetic operators

In PHP, you can overload arithmetic operators by using the magic methods. This allows you to define how operators like +, -, *, and / behave with your custom classes. Below is an example demonstrating how to overload the addition operator.


        <?php
        class Vector {
            public $x;
            public $y;

            public function __construct($x, $y) {
                $this->x = $x;
                $this->y = $y;
            }

            public function __toString() {
                return "($this->x, $this->y)";
            }

            public function __add($v) {
                return new Vector($this->x + $v->x, $this->y + $v->y);
            }
        }

        $v1 = new Vector(1, 2);
        $v2 = new Vector(3, 4);
        $v3 = $v1 + $v2;

        echo $v3; // Outputs: (4, 6)
        ?>