您当前的位置： 首页 > 慢生活 > 程序人生 网站首页程序人生

php多个trait

发布时间：2021-09-24 14:22:41编辑：雪饮阅读（）

 Php中trait也是可以有多个的，一个派生类中可以use多个trait。

test.php：
<?php
declare(strict_types=1);
trait Dog{
    public function say(){
        echo "This is dog";
    }
}
trait Dog2{
    public function say2(){
        echo "This is dog2";
    }
}
trait Dog3{
    public function say3(){
        echo "This is dog3";
    }
}
class Animal{
    public $name="dog";
    public function eat(){
        echo "This is animal eat";
    }
}
class Cat extends Animal{
    public $name="dog";
    use Dog;
    use Dog2;
    use Dog3;
}
$cat = new Cat();
$cat->say();
$cat->say2();
$cat->say3();
?>
运行结果：
C:\Users\Administrator\PhpstormProjects\untitled\organizing>D:\phpstudy_pro\Extensions\php\php7.3.4nts\php.exe C:\Users\Administrator\PhpstormProjects\untitled\test.php
This is dogThis is dog2This is dog3