php - 电子邮件发送正常，但我收到消息 $body 未定义？

Question

这个问题已经有答案了:

"Notice: Undefined variable", "Notice: Undefined index", "Warning: Undefined array key", and "Notice: Undefined offset" using PHP (29 个回答)

已关闭 5 年前。

所以我有一个系统，您可以在其中将成员添加到您的组中，并且电子邮件似乎发送完全正常并且包含所有信息，但我收到一条错误，指出 $body 是 undefined variable ，有什么建议吗？

   <?php //check member Email matches
$addmember = $link->query("SELECT Email FROM logins WHERE Email ='$memberemail'")->fetch_assoc()['Email'];


$to = $addmember;
$subject = "Becoming part of $leaguename";
            $body.="So you want to become part of $leaguename?".PHP_EOL;
            $body.="Please click the link below to join!".PHP_EOL;
            $body.="http://www.wesbitelink.dev/verify.php?memberemail=$memberemail;".PHP_EOL;

            $headers = "From: localhost";

            mail($to, $subject, $body, $headers);
          header("location: addanothermember.php");

  ?>

我收到的错误消息是:

Notice: Undefined variable: body

Answer 1

首先创建 $body 变量，然后您可以在此变量上附加内容

 <?php //check member Email matches
$addmember = $link->query("SELECT Email FROM logins WHERE Email ='$memberemail'")->fetch_assoc()['Email'];


$to = $addmember;
$subject = "Becoming part of $leaguename";
            $body="So you want to become part of $leaguename?".PHP_EOL;
            $body.="Please click the link below to join!".PHP_EOL;
            $body.="http://www.wesbitelink.dev/verify.php?memberemail=$memberemail;".PHP_EOL;

            $headers = "From: localhost";

            mail($to, $subject, $body, $headers);
          header("location: addanothermember.php");

  ?>

试试这个