Online PHP editor | refs for 0VmYQ

<?php declare(strict_types=1); class Foo { private array $data = []; public function __set($name, $value) { $this->data[$name] = $value; } public function __isset($name) { return isset($this->data[$name]); } public function __unset($name) { unset($this->data[$name]); } } $foo = new Foo(); $foo->__set(1, 'one'); $foo->__set(2, 'two'); var_dump( $foo->__isset(1), // true $foo->__isset(2) // true ); $foo->__unset(1); var_dump( $foo->__isset(1) // false );