电子邮件正文未显示（swift 邮件程序 PHP）

Question

我正在使用 swift 邮件程序通过 'gmail' 发送电子邮件验证，但问题是我收到一封没有正文的空白电子邮件， Here is what I get in my email : 这是我的代码：

<?php 
  require_once './vendor/autoload.php';
  require_once './config/constants.php';

  // Create the Transport
  $transport = (new Swift_SmtpTransport('smtp.googlemail.com', 465, 'ssl'))
      ->setUsername(EMAIL)
      ->setPassword(PASSWORD)
    ;
  
  // Create the Mailer using your created Transport
  $mailer = new Swift_Mailer($transport);
  
  
  function sendEmailVerification($userEmail, $userToken){
    global $mailer;
    $body = `
      <!DOCTYPE html>
      <html lang="en">
      <head>
        <meta charset="UTF-8">
        <title>Document</title>
      </head>
      <body>
        <div class="wrapper">
          <p>
            Thank you for Signing in to ESP. Please click on the link below to Verify your Account.
          </p>
          <a href="http://localhost/eps/login.php?token='. $userToken .'">Verify your Acount</a>
        </div>
      </body>
      </html>
    `;
    // Create a message
      $message = (new Swift_Message('Verify Your email'))
        ->setFrom( EMAIL )
        ->setTo($userEmail)
        ->setBody($body)
        ->setContentType('text/html')
        ;
      
      // Send the message
      $mailer->send($message); //tried also $result = $mailer->send($message);
  }
?>

任何解决方案请！

Answer 1

请将反引号(`)改为单引号('):

 $body = '
      <!DOCTYPE html>
      <html lang="en">
      <head>
        <meta charset="UTF-8">
        <title>Document</title>
      </head>
      <body>
        <div class="wrapper">
          <p>
            Thank you for Signing in to ESP. Please click on the link below to Verify your Account.
          </p>
          <a href="http://localhost/eps/login.php?token='. $userToken .'">Verify your Acount</a>
        </div>
      </body>
      </html>
    ';

这个概念更多的是变量插值。

其中字符串可以用单引号或双引号引起来。

如果我们必须在字符串中的任何元素周围添加双引号，我们可以用单引号开始该字符串，反之亦然。

请查看以下语法，所有 3 个都是正确的：

echo '<div class="myCls" id="myId">Some Content Here</div>';

和

echo "<div class='myCls' id='myId'>Some Content Here</div>";

和

echo "<div class=\"myCls\" id=\"myId\">Some Content Here</div>"; 
// Escaping the characters with '\' character.

至少对我来说，我更喜欢第一个。

电子邮件正文未显示（swift 邮件程序 PHP）

email body is not showing up (swift mailer PHP)

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