我创建的wp\\U邮件功能有问题，当我按下按钮时，它会发送电子邮件。当您注销时，它确实工作得很好。但一旦我登录，它就会停止工作。这不是一个能力问题，因为我作为超级管理员也会遇到这个错误。

为什么会发生这种情况？我正在使用PHP函数和Ajax一起发送电子邮件，Javascript函数称为onclick。

function searchEmail(email,title,content,location) {
  var admin_url = admin_ajax.ajaxurl;
  $.ajax({
    type: "POST",
    url: admin_url,
    datatype: "html",
    data: { \'action\': \'search_notify_email\', email: email, title: title, content: content, location: location },
    success: function() {
      searchNotification();
    },error:function() {
      searchNotificationError();
    }
  });
}

function search_notify_email() {
  // Set variables
  $email = $_POST[\'email\'];
  $title = $_POST[\'title\'];
  $content = $_POST[\'content\'];
  $location = $_POST[\'location\'];
  // Change Email to HTML
  add_filter( \'wp_mail_content_type\', \'set_email_content_type\' );
    $to = $email;
    $subject = "Test subject!";
    $message = "<img src=\'favicon.png\'><br><b>Test!</b>";
    if (empty($title)) {
      $message .= "<br><br><b>" . $_POST[\'content\'] . "</b> test.<br> ";
    }
    else {
      $message .= "<br><br><b>" . $_POST[\'content\'] . "</b> test " . $_POST[\'title\'] . " test.<br> ";
    }
    if (!empty($location)) {
      $message .= "Test <b>" . $_POST[\'location\'] . "</b>";
    }
    $headers[] = \'From: Testing <noreply@example.com>\';

    if ( wp_mail($to, $subject, $message, $headers) ) {
      // Success
    } else {
      // Error
    }
    die();
    // Remove filter HTML content type
    remove_filter( \'wp_mail_content_type\', \'set_email_content_type\' );
}
add_action(\'wp_ajax_nopriv_search_notify_email\', \'search_notify_email\');
add_action(\'wp_ajax_search_notify_emaill\', \'search_notify_email\');

// Reset Email content type to standard text/html
function set_email_content_type() {
    return \'text/html\';
}