php里的protected

<?php class Fruit { protected $name; public function __construct($name) { $this->name = $name; } protected function getName() { return $this->name; } } class Apple extends Fruit { public function showName() { return "This is an " . $this->getName(); // 可以访问父类的protected方法 } } $apple = new Apple("Apple"); echo $apple->showName(); // 输出：This is an Apple