将重音字符 é 插入 Symfony2 中的表单时，如何在 mysql 数据库中将重音字符 é 保存为 é？

Question

我想知道如何在 mysql 数据库中将重音字符 é 保存为 é，当它插入 Symfony2 中的表单时。解释如下：

这是我拥有的表单生成器的代码：

    <?php

namespace Ikproj\GroupeBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

class MessagesType extends AbstractType
{
     /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('contenu','textarea', array('attr' => array('rows' => '6','cols' => '40')));
    }

    /**
     * @param OptionsResolverInterface $resolver
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Ikproj\GroupeBundle\Entity\Messages'
        ));
    }

    /**
     * @return string
     */
    public function getName()
    {
        return 'ikproj_groupebundle_messages';
    }
}

这是属于上述表单构建器的实体的代码：

    <?php

namespace Ikproj\GroupeBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Messages
 *
 * @ORM\Table(name="messages")
 * @ORM\Entity(repositoryClass="Ikproj\GroupeBundle\Entity\MessagesRepository")
 */
class Messages
{
    /**
     * @var integer
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var integer 
     * 
     * @ORM\Column(name="actor", type="integer")
     */
     private $actor;

    /**
     * @var integer
     *
     * @ORM\Column(name="subject", type="integer")
     */
    private $subject;

    /**
     * @var string
     *
     * @ORM\Column(name="contenu", type="string")
     */
    private $contenu;

    /**
     * @var string
     *
     * @ORM\Column(name="status", type="string", length=10)
     */
    private $status;

    /**
     * @var string
     *
     * @ORM\Column(name="type", type="string", length=10)
     */
    private $type;

    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set actor
     *
     * @param integer $actor
     * @return Messages
     */
    public function setActor($actor)
    {
        $this->actor = $actor;
        return $this;
    }

    /**
     * Get actor
     *
     * @return integer 
     */
    public function getActor()
    {
        return $this->actor;
    }

    /**
     * Set subject
     *
     * @param integer $subject
     * @return Messages
     */
    public function setSubject($subject)
    {
        $this->subject = $subject;
        return $this;
    }

    /**
     * Get subject
     *
     * @return integer 
     */
    public function getSubject()
    {
        return $this->subject;
    }

    /**
     * Set contenu
     *
     * @param string $contenu
     * @return Messages
     */
    public function setContenu($contenu)
    {
        $this->contenu = $contenu;
        return $this;
    }

    /**
     * Get contenu
     *
     * @return string 
     */
    public function getContenu()
    {
        return $this->contenu;
    }

    /**
     * Set status
     *
     * @param string $status
     * @return Messages
     */
    public function setStatus($status)
    {
        $this->status = $status;
        return $this;
    }

    /**
     * Get status
     *
     * @return string 
     */
    public function getStatus()
    {
        return $this->status;
    }

    /**
     * Set type
     *
     * @param string $type
     * @return Messages
     */
    public function setType($type)
    {
        $this->type = $type;
        return $this;
    }

    /**
     * Get type
     *
     * @return string 
     */
    public function getType()
    {
        return $this->type;
    }
}

这是我拥有的控制器的代码：

 public function SendMessageAction(Request $request, $actor, $subject, $cible) {
        $message = new Messages();
        $form = $this->createForm(new MessagesType(), $message);
        $em = $this->getDoctrine()->getManager();
        $actor1 = $actor;
        $subject1 = $subject;
        $status1 = "unseen";
        $cible1 = $cible;
        if ($request->isMethod('POST')) {
            $form->handleRequest($request);
            if ($form->isValid()) {
                $message->setActor($actor1);
                $message->setSubject($subject1);
                $message->setStatus($status1);
                $message->setType($cible1);
                $em->persist($message);
                $em->flush();
                return $this->redirect($this->generateUrl('task_success'));
            }
        } 
        else {
            return $this->render('IkprojGroupeBundle:Messages:SendMessage.html.twig', array(
                        'form' => $form->createView(),
                        'actor' => $actor,
                        'subject' => $subject,
                        'cible' => $cible
            ));
        }
    }

这是属于教义配置的文件config.yml的代码：

doctrine:
dbal:
    driver:   "%database_driver%"
    host:     "%database_host%"
    port:     "%database_port%"
    dbname:   "%database_name%"
    user:     "%database_user%"
    password: "%database_password%"
    charset:  UTF8

问题是，当我在表单中插入重音字符 é 时，我有效，它将在数据库中保存为 é 而不是 é，如下面的屏幕截图所示：

而当我在 Symfony2 中运行以下代码时：

 <?php
$tab = $_REQUEST['table'];
$a = $tab[0];
$b = $tab[1];
$con=mysqli_connect("localhost","root","","wkayetdb");
if (mysqli_connect_errno()) {
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"INSERT INTO messages(actor,subject,contenu,status,type) VALUES ($a,$b,'é','unseen','G')");
mysqli_close($con);
?>

它可以正常工作，字符 é 将保存为 é，如下所示：

所以，我的问题是：

1. 我的代码有什么问题？
2. 在 Symfony2 中将 é 插入表单后，如何在 mysql 数据库中将 é 保存为 é？

Answer 1

我不知道你为什么要这样做 但如果你想这样做，只需注释该行“charset：UTF8”

doctrine:
 dbal:
    driver:   "%database_driver%"
    host:     "%database_host%"
    port:     "%database_port%"
    dbname:   "%database_name%"
    user:     "%database_user%"
    password: "%database_password%"
#    charset:  UTF8