回到php括号中

Question

我正在尝试创建邮件表单，但我希望邮件根据他们注册时提供的电子邮件地址发送给不同的人。

我如何用<?php echo $row_DetailRS1['email']; ?>

替换example@live.co.uk

    <?php
if (isset($_REQUEST['email']))
//if "email" is filled out, send email
  {

  //send email
  $email = $_REQUEST['email'] ;
  $name = $_REQUEST['name'] ;
  $subject = $_REQUEST['subject'] ;
  $message = $_REQUEST['message'] ;
  mail("example@live.co.uk", $subject,
  $message, "From:" . $email);
  echo "Thank you for using our mail form";
  }
else
//if "email" is not filled out, display the form
  {
      echo"<form method='post' action='../index.php#contact'>

  <input type='text' name='name' class='cform' placeholder='Name...'> 

<input type='email' name='email'  class='cform' placeholder='Email...'>
<input type='text' name='subject' class='cform' placeholder='Subject...'>
<textarea name='message' id='message' class='txtarea'></textarea>
 <input  class='buttonform'type='submit'>
        </form>";
  }
?>

Answer 1

为什么不能用变量替换"example@live.co.uk"？

mail($row_DetailRS1['email'], $subject, $message, "From:" . $email);