PHP7匿名类的用法示例

<?php/** * Created by PhpStorm. * User: Itboot * Date: 2019/1/17 * Time: 18:15 */class An{  private $num;  protected $age = 15;  public function __construct() {    $this->num = 1;  }  protected function bar(): int {    return 10;  }  public function drive() {    return new class($this->num) extends An{      protected $id;      public function __construct($num) {        $this->id = $num;      }      public function ea() {        return $this->id + $this->age + $this->bar();      }    };  }}echo (new An())->drive()->ea();

<?php$fun = function (){  print '这是匿名函数'. PHP_EOL;};$fun();class Animal{  public $num;  public function __construct(...$args)  {    $this->num = $args[0];  }  public function getValue($su): int  {    return $this->num + $su;  }}$an = new Animal(4);echo $an->getValue(12) . PHP_EOL;echo '匿名类'. PHP_EOL;echo (new class(11) extends Animal{})->getValue(12);