PHP7匿名类的用法示例
这篇文章主要介绍了PHP7匿名类的用法,结合实例形式分析了php7匿名类、匿名函数简单定义与使用技巧,需要的朋友可以参考下。
本文实例讲述了PHP7匿名类的用法，分享给大家供大家参考，具体如下：
- <?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);