我在使用 SwiftMailer 的最新主要版本时遇到问题，装饰器插件只会替换消息中列表中第一个电子邮件地址的占位符，然后在所有后续电子邮件中使用相同的数据 - 无论电子邮件地址。

例如如果...

$replacements[test@test.com] = array('{firstname}'=>'Jeff', '{age}'=>'32');
$replacements[example@example.com] = array('{firstname}'=>'Mary', '{age}'=>'86');

第一封电子邮件可能会说...“嗨，杰夫，你今年 32 岁”。 然后第二封电子邮件应该说“嗨，玛丽，你 86 岁了”。但是，第二封电子邮件与第一封电子邮件完全相同。 有任何想法吗？我感谢任何和所有帮助...谢谢。

这是我的php代码

foreach ($result as $user) {
  $replacements[$user['Email']] = array(
    '{FirstName}'=>$user['FirstName'],
    '{LastName}'=>$user['LastName']
  );
}

$mailer = Swift_Mailer::newInstance($transport);
$decorator = new Swift_Plugins_DecoratorPlugin($replacements);
$mailer->registerPlugin($decorator);


$message = Swift_Message::newInstance()
  ->setSubject('Important notice for {FirstName}')
  ->setFrom(array('john@doe.com' => 'John Doe'))
  ->setBody(
    "Hello {FirstName}, we have reset your password to {LastName}\n" .
   "Please log in and change it at your earliest convenience."
  )
  ;
foreach ($result as $user) {
$message->setTo($user['Email']);
}

// Create a message
//$template = file_get_contents('../html/full_width.html');  
//->setBody($template, 'text/html', 'utf-8'); 
//->addPart('Dear {FirstName} {LastName},This is testing mail.', 'text/plain', 'utf-8');
  // Send the message



// Pass a variable name to the send() method
if (!$numSent=$mailer->send($message,$failures))
{
  echo "Failures:";
  print_r($failures);
}
else
printf("Sent %d messages\n", $numSent);

这是插件代码

<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */


/**
 * Allows customization of Messages on-the-fly.
 * 
 * @package Swift
 * @subpackage Plugins
 * 
 * @author Chris Corbyn
 * @author Fabien Potencier
 */
class Swift_Plugins_DecoratorPlugin
  implements Swift_Events_SendListener, Swift_Plugins_Decorator_Replacements
{

  /** The replacement map */
  private $_replacements;

  /** The body as it was before replacements */
  private $_orginalBody;

  /** The original headers of the message, before replacements */
  private $_originalHeaders = array();

  /** Bodies of children before they are replaced */
  private $_originalChildBodies = array();

  /** The Message that was last replaced */
  private $_lastMessage;

  /**
   * Create a new DecoratorPlugin with $replacements.
   * 
   * The $replacements can either be an associative array, or an implementation
   * of {@link Swift_Plugins_Decorator_Replacements}.
   * 
   * When using an array, it should be of the form:
   * <code>
   * $replacements = array(
   *  "address1@domain.tld" => array("{a}" => "b", "{c}" => "d"),
   *  "address2@domain.tld" => array("{a}" => "x", "{c}" => "y")
   * )
   * </code>
   * 
   * When using an instance of {@link Swift_Plugins_Decorator_Replacements},
   * the object should return just the array of replacements for the address
   * given to {@link Swift_Plugins_Decorator_Replacements::getReplacementsFor()}.
   * 
   * @param mixed $replacements
   */
  public function __construct($replacements)
  {
    if (!($replacements instanceof Swift_Plugins_Decorator_Replacements))
    {
      $this->_replacements = (array) $replacements;
    }
    else
    {
      $this->_replacements = $replacements;
    }
  }

  /**
   * Invoked immediately before the Message is sent.
   * 
   * @param Swift_Events_SendEvent $evt
   */
  public function beforeSendPerformed(Swift_Events_SendEvent $evt)
  {
    $message = $evt->getMessage();
    $this->_restoreMessage($message);
    $to = array_keys($message->getTo());
    $address = array_shift($to);
    if ($replacements = $this->getReplacementsFor($address))
    {
      $body = $message->getBody();
      $search = array_keys($replacements);
      $replace = array_values($replacements);
      $bodyReplaced = str_replace(
        $search, $replace, $body
        );
      if ($body != $bodyReplaced)
      {
        $this->_originalBody = $body;
        $message->setBody($bodyReplaced);
      }

      foreach ($message->getHeaders()->getAll() as $header)
      {
        $body = $header->getFieldBodyModel();
        $count = 0;
        if (is_array($body))
        {
          $bodyReplaced = array();
          foreach ($body as $key => $value)
          {
            $count1 = 0;
            $count2 = 0;
            $key = is_string($key) ? str_replace($search, $replace, $key, $count1) : $key;
            $value = is_string($value) ? str_replace($search, $replace, $value, $count2) : $value;
            $bodyReplaced[$key] = $value;

            if (!$count && ($count1 || $count2))
            {
              $count = 1;
            }
          }
        }
        else
        {
          $bodyReplaced = str_replace($search, $replace, $body, $count);
        }

        if ($count)
        {
          $this->_originalHeaders[$header->getFieldName()] = $body;
          $header->setFieldBodyModel($bodyReplaced);
        }
      }

      $children = (array) $message->getChildren();
      foreach ($children as $child)
      {
        list($type, ) = sscanf($child->getContentType(), '%[^/]/%s');
        if ('text' == $type)
        {
          $body = $child->getBody();
          $bodyReplaced = str_replace(
            $search, $replace, $body
            );
          if ($body != $bodyReplaced)
          {
            $child->setBody($bodyReplaced);
            $this->_originalChildBodies[$child->getId()] = $body;
          }
        }
      }
      $this->_lastMessage = $message;
    }
  }

  /**
   * Find a map of replacements for the address.
   * 
   * If this plugin was provided with a delegate instance of
   * {@link Swift_Plugins_Decorator_Replacements} then the call will be
   * delegated to it.  Otherwise, it will attempt to find the replacements
   * from the array provided in the constructor.
   * 
   * If no replacements can be found, an empty value (NULL) is returned.
   * 
   * @param string $address
   * 
   * @return array
   */
  public function getReplacementsFor($address)
  {
    if ($this->_replacements instanceof Swift_Plugins_Decorator_Replacements)
    {
      return $this->_replacements->getReplacementsFor($address);
    }
    else
    {
      return isset($this->_replacements[$address])
        ? $this->_replacements[$address]
        : null
        ;
    }
  }

  /**
   * Invoked immediately after the Message is sent.
   * 
   * @param Swift_Events_SendEvent $evt
   */
  public function sendPerformed(Swift_Events_SendEvent $evt)
  {
    $this->_restoreMessage($evt->getMessage());
  }

  // -- Private methods

  /** Restore a changed message back to its original state */
  private function _restoreMessage(Swift_Mime_Message $message)
  {
    if ($this->_lastMessage === $message)
    {
      if (isset($this->_originalBody))
      {
        $message->setBody($this->_originalBody);
        $this->_originalBody = null;
      }
      if (!empty($this->_originalHeaders))
      {
        foreach ($message->getHeaders()->getAll() as $header)
        {
          $body = $header->getFieldBodyModel();
          if (array_key_exists($header->getFieldName(), $this->_originalHeaders))
          {
            $header->setFieldBodyModel($this->_originalHeaders[$header->getFieldName()]);
          }
        }
        $this->_originalHeaders = array();
      }
      if (!empty($this->_originalChildBodies))
      {
        $children = (array) $message->getChildren();
        foreach ($children as $child)
        {
          $id = $child->getId();
          if (array_key_exists($id, $this->_originalChildBodies))
          {
            $child->setBody($this->_originalChildBodies[$id]);
          }
        }
        $this->_originalChildBodies = array();
      }
      $this->_lastMessage = null;
    }
  }

}

另一个相关的插件页面

<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Allows customization of Messages on-the-fly.
 * 
 * @package Swift
 * @subpackage Plugins
 * 
 * @author Chris Corbyn
 */
interface Swift_Plugins_Decorator_Replacements
{

  /**
   * Return the array of replacements for $address.
   * 
   * This method is invoked once for every single recipient of a message.
   * 
   * If no replacements can be found, an empty value (NULL) should be returned
   * and no replacements will then be made on the message.
   * 
   * @param string $address
   * 
   * @return array
   */
  public function getReplacementsFor($address);

}

Reference: 1. swift mailer plugin page: http://swiftmailer.org/docs/plugins.html (Using the Decorator Plugin)

1. Disscuss on official forum 1. https://github.com/swiftmailer/swiftmailer/issues/101

2. Disscuss on official forum 2. https://github.com/swiftmailer/swiftmailer/issues/161

最佳答案

send() 方法不应该作为循环的一部分被调用吗？否则，您只是遍历所有用户，并且只会在用户数组的最后一个元素上调用 send()。

foreach ($result as $user) {

    $message->setTo($user['Email']);

    // Pass a variable name to the send() method
    if (!$numSent=$mailer->send($message,$failures)) { 
        echo "Failures:";
        print_r($failures);
    }
}

调用代码负责调用 beforeSendPerformed() 方法似乎很奇怪，但如果是这样的话，我会在 foreach 中的 send() 之前添加它循环。

-- 更新--

试试这个:

$mailer = Swift_Mailer::newInstance($transport);

$message = Swift_Message::newInstance()
  ->setSubject('Important notice for {FirstName}')
  ->setFrom(array('john@doe.com' => 'John Doe'));

foreach ($result as $user) {

    $message->setTo($user['Email']);

    $message->setBody(setBody(sprintf("Hello %s, we have reset your password to %s\n" . "Please log in and change it at your earliest convenience.", $user['FirstName'], $user['LastName']);

    if (!$numSent=$mailer->send($message,$failures)) {
        $failures[] = $failures;
    }
}

if (isset($failures)) {
    var_dump($failures);
}

关于PHP 和 SwiftMailer : Decorator Plugin 'stuck' on first entry.，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/9434883/