如何在for循环中打印所有结果？

Question

在我的代码中，我尝试打印出所有针对“ montag” IS“ geschlossen”的结果。它可以工作，但是我必须在var_dump（）中打印它，否则会出现错误。

我的问题是，如何在循环中返回结果？我想用Doctrine，Symfony和twig制作这个（PDO示例）：

foreach ($pdo->query($sql) as $row) {
   echo $row['value1']."<br />";
   echo $row['value2']."<br />";
}

<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\HttpFoundation\Response;
use App\Entity\Offnungszeiten;
use Doctrine\ORM\EntityManagerInterface;

class OffnungsController extends AbstractController
{
    /**
     * @Route("/")
     */
    public function index(EntityManagerInterface $em)
    {
        $repository = $em->getRepository(Offnungszeiten::class);
        /** @var Offnungszeiten $open */
        $open = $repository->findOneBy(['id' => 3]);
        if (!$open) {
            throw $this->createNotFoundException(sprintf('Not Found Exception - SQL findOneBy() is undefined'));
        }


        $repository = $this->getDoctrine()->getRepository(Offnungszeiten::class);

        $products = $repository->findBy(
            ['montag' => 'Geschlossen'],
            ['id' => 'ASC']
        );

        $products = $repository->findAll();

    $result = var_dump($products);



        $response = $this->forward('App\Controller\IndexController::index', [
            'open' => $open,
            'productsrt' => $result
        ]);
        return $response;
    }
}

在树枝上，我尝试像这样打印：

    {% for productsrt in productsrt %}
        {{ productsrt }}
    {% endfor %}

IndexController.php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;

class IndexController extends AbstractController
{
    public function index($open, $productsrt)
    {
        return $this->render('index/index.html.twig', [
            'controller_name' => 'IndexController',
            'pagetype' => 'index',
            'pageurl' => "https://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]",
            'open' => $open,
            'productsrt' => $productsrt
        ]);
    }

它打印：array（2）{[0] => object（App \ Entity \ Offnungszeiten）＃490（8）{[“ id”：“ App \ Entity \ Offnungszeiten”：private] => int（3）[“ montag”： “ App \ Entity \ Offnungszeiten”：private] =>字符串（11）“ Geschlossen” [“ dienstag”：“ App \ Entity \ Offnungszeiten”：private] => string（22）“ 09.00 Uhr-18.00 Uhr” [“ mittwoch “：” App \ Entity \ Offnungszeiten“：private] =>字符串（22）” 09.00 Uhr-18.00 Uhr“ [” donnerstag“：” App \ Entity \ Offnungszeiten“：private] => string（22）” 09.00 Uhr- 20.00 Uhr“ [”“ freitag”：“ App \ Entity \ Offnungszeiten”：private] =>字符串（22）“ 09.00 Uhr-18.00 Uhr” [“ samstag”：“ App \ Entity \ Offnungszeiten”：private] => string（ 21）“ 09.00 Uhr-13.00 Uhr” [“ sonntag”：“ App \ Entity \ Offnungszeiten”：private] =>字符串（11）“ Geschlossen”} [1] => object（App \ Entity \ Offnungszeiten）＃493。 .......... [等等]

但是我无法将其“重新格式化”为普通数组或循环生成

我得到了错误

An exception has been thrown during the rendering of a template ("Catchable Fatal Error: Object of class App\Entity\Offnungszeiten could not be converted to string").
``` if I tried it without var_dump()


I hope that the problem was understandable and that you can help me! Thank you!

Answer 1

尝试在symfony中使用转储方法

dump(var)

它正确呈现有关对象/变量的信息。

更多信息https://symfony.com/doc/current/components/var_dumper.html