Question

我试图使用Symfony DI来获取同一类但具有各种属性值的对象，但我收到了相同的对象。我曾尝试过探索Symfony doc，但我无法找到答案。

<?php

use Symfony\Component\DependencyInjection\ContainerBuilder;


class Foo
{
    public $container;
    public $booCollection = [];

    public function __construct()
    {
        $this->container = $container = new ContainerBuilder();
        $this->container->setParameter('id', '');
        $this->container->register('boo', 'Boo')
            ->addArgument('%booid%');
    }

    public function getListOfBoo()
    {
        for ($id = 1; $id <= 2; $id++) {
            $this->container->setParameter('booid', $id);
            $this->booCollection[] = $this->container->get('boo');
        }
    }
}

class Boo
{
    public $id;
    public function __construct($id)
    {
        $this->id = $id;
    }
}

$foo = new Foo();
$foo->getListOfBoo();

var_dump($foo->booCollection);
?>

结果：

array (size=2)
    0 => 
        object(Boo)[32]
        public 'id' => int 1
    1 => 
        object(Boo)[32]
        public 'id' => int 1

但我需要：

array (size=2)
    0 => 
        object(Boo)[32]
        public 'id' => int 1
    1 => 
        object(Boo)[32]
        public 'id' => int 2

Answer 1

您需要使用原型范围（symfony＆lt; 2.8）或在服务定义中将shared设置为false（symfony＆gt; = 2.8）。

E.g。（＆lt; 2.8）

services:
    app.some_not_shared_service:
        class: ...
        scope: prototype

E.g。（＆gt; = 2.8）

services:
    app.some_not_shared_service:
        class: ...
        shared: false

了解更多信息：

http://symfony.com/doc/2.8/cookbook/service_container/shared.html

如何通过Symfony依赖注入（递归）获取同一类的几个对象？

1 个答案: