- __construct 构造方法
1 class Person 2 { 3 public $name; 4 5 # 构造方法 6 public function __construct($n){ 7 $this->name = $n; 8 } 9 10 public function say(){11 return "my name is { $this->name}";12 }13 }14 15 $obj = new Person('yach');16 echo $obj->say(); - __destruct 析构方法
1 public function __destruct(){2 echo "{
$this->name}被清理";3 }4 5 # 后进先出 (弹夹原理) - __toString 对象说明
class Usb{ public function load(){ echo "load
"; } public function __toString(){ return 'This is a obj'; }}$obj = new Usb();echo $obj; - __call 访问对象不存在的方法时调用
1 class Usb 2 { 3 public function load(){ 4 echo "load
"; 5 } 6 7 public function __call($i,$j){ 8 return "您访问的方法{ $i}不存在
"; 9 }10 }11 12 $obj = new Usb();13 echo $obj->start(); - __get 提示无权限获取的方法
1 class Usb 2 { 3 private function load(){ 4 echo "load
"; 5 } 6 7 public function __get($i){ 8 return "您无权访问{
$i}方法"; 9 }10 }11 12 $obj = new Usb();13 echo $obj->load; - __set 提示无权限设置的方法
1 class Usb 2 { 3 private $name = 'yu'; 4 5 public function __set($i,$j){ 6 echo "您无权设置{
$i}为{ $j}"; 7 } 8 } 9 10 $obj = new Usb();11 $obj->name = 'yach'; - __isset 检测私有属性值是否被设定
1 class Usb 2 { 3 private $name = 'yu'; 4 5 public function __isset($i){ 6 return "未设定{
$i}属性"; 7 } 8 } 9 10 $obj = new Usb();11 $b = isset($obj->name);12 echo $b; - __unset 无权删除提示
1 class Usb 2 { 3 private $name = 'yu'; 4 5 public function __unset($i){ 6 echo "您无权删除{
$i}属性"; 7 } 8 } 9 10 $obj = new Usb();11 unset($obj->name);