Question

当我提交表单时，我收到的是last_name和电子邮件字段，但没有收到第一个名字。快把我逼疯了！如果有人能快速浏览一下，让我知道为什么我会非常感激。我是PHP的初学者。谢谢！

HTML：

<form name="contactform" method="post" action="send_form_email.php">
        <div class="email_section_details"> <span class="msg_icon"><img src="common/images/msg_icon.png" alt="" /></span>
          <div class="row">
                          <div class="col">
            <label for="first_name"><strong>First</strong>NAME:</label>
              <span class="input_bg">
              <input name="first_name" type="text" value="" />
              </span> </div>
            <div class="col">
              <label for="email"><strong>EMAIL</strong>ADDRESS:</label>
              <span class="input_bg">
              <input name="email" type="text" value="" />
              </span> </div>
            <div class="col">
              <label for="last_name"><strong>LAST</strong>NAME:</label>
              <span class="input_bg">
              <input name="last_name" type="text" value="" />
              </span> </div>
            <input type="image" src="common/images/submit_btn.png" class="submit_btn" />
        </div>
          </form>

这是PHP：

    <?php
if(isset($_POST['email'])) {

    // EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "#";
    $email_subject = "Email Update Sign-up Request from #";


    function died($error) {
        // your error code can go here
        echo "We are very sorry, but there were error(s) found with the form you submitted. ";
        echo "These errors appear below.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        die();
    }

    // validation expected data exists
    if(!isset($_POST['first_name']) ||
        !isset($_POST['last_name']) ||
        !isset($_POST['email']))


    $first_name = $_POST['first_name']; // required
    $last_name = $_POST['last_name']; // required
    $email_from = $_POST['email']; // required


    $error_message = "";
    $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
  if(!preg_match($email_exp,$email_from)) {
    $error_message .= 'The Email Address you entered does not appear to be valid.<br />';
  }
    $string_exp = "/^[A-Za-z .'-]+$/";
  if(!preg_match($string_exp,$first_name)) {
    $error_message .= 'The First Name you entered does not appear to be valid.<br />';
  }
  if(!preg_match($string_exp,$last_name)) {
    $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
  }

    $email_message = "Form details below.\n";

    function clean_string($string) {
      $bad = array("content-type","bcc:","to:","cc:","href");
      return str_replace($bad,"",$string);
    }

    $email_message .= "First Name: ".clean_string($first_name)."\n";
    $email_message .= "Last Name: ".clean_string($last_name)."\n";
    $email_message .= "Email: ".clean_string($email_from)."\n";



// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);  
?>

<!-- include your own success html here -->

Thank you for contacting us. We will be in touch with you very soon. Please use your "Back Button" to return to the Home Page

<?php
}
?>

Answer 1

你的问题是这段代码：

// validation expected data exists
if(!isset($_POST['first_name']) ||
    !isset($_POST['last_name']) ||
    !isset($_POST['email']))


$first_name = $_POST['first_name']; // required
$last_name = $_POST['last_name']; // required
$email_from = $_POST['email']; // required

这是一个if语句，后面没有代码，所以它正在选择你分配$ first_name的下一行。所以永远不会被执行。它等同于：

// validation expected data exists
if(!isset($_POST['first_name']) ||
    !isset($_POST['last_name']) ||
    !isset($_POST['email']))
{
    $first_name = $_POST['first_name']; // required
}

$last_name = $_POST['last_name']; // required
$email_from = $_POST['email']; // required

在一个相关的说明中，一般来说，这个代码相当混乱，不一致的缩进等等。我知道这看起来很琐碎和迂腐，但如果你花更多的时间编写更干净的代码，你会发现它更容易解决这样的错误（和其他人一样）。

PHP电子邮件表单不发送所有字段

1 个答案: