Question

只是想知道你们中的任何一个天才能否帮我解决一些关于php联系表格的问题。

基本上，我有这个需要基本的联系表格：姓名，电子邮件，评论。问题是：当字段为空时按下“提交”按钮时，验证会有效启动，但代价是“打破”页面（即</body>和</html>标签是不能被关闭）。

我觉得这归结为die();中的function died($error) .....看看......非常感谢任何帮助！

由于

PHP：（send_email.php文件）

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

    // Email addys
    $email_to = "ch@yahoo.co.uk";
    $email_subject = "message";


    function died($error) {
        // ERRORS
        echo "<p class=\"content-text3\">I am very sorry, but there were error(s) found with the form you submitted.</p> ";
        echo "<p class=\"content-text\">These errors are as follows:</p><br /><br />";
        echo "<p class=\"content-text\">$error </p> <br /><br />";
        echo "<p class=\"content-text\">Please <a href=\"contact.php\">go back</a> and fix these errors.</p><br /><br />";
        die();


    }

    // validation 
    if(!isset($_POST['first_name']) ||
        !isset($_POST['last_name']) ||
        !isset($_POST['email']) ||
        !isset($_POST['telephone']) ||
        !isset($_POST['comments'])) {
        died('We are sorry, but there appears to be a problem with the form you submitted.');   
        die();    
    }

    $first_name = $_POST['first_name']; // required
    $last_name = $_POST['last_name']; // required
    $email_from = $_POST['email']; // required
    $telephone = $_POST['telephone']; // not required
    $comments = $_POST['comments']; // 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)) {
    $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
  }
  if(strlen($comments) < 2) {
    $error_message .= 'The Comments you entered do not appear to be valid.<br />';
  }
  if(strlen($error_message) > 0) {
    died($error_message);
  }
    $email_message = "Form details below.\n\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";
    $email_message .= "Telephone: ".clean_string($telephone)."\n";
    $email_message .= "Comments: ".clean_string($comments)."\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);  
    ?>
    <!-- sent success -->
    <p class="content-text">Thank you for contacting me. I will be in touch with you very soon.</p>
    <?php
    }
    ?>

联系表格：

 <div id="contact-form">        
          <form id="contactform" method="post" action="send_email.php">
            <table width="450px" border="0">

              <tr>
               <td valign="top">
                <label for="first_name" style="color:#999;">First Name *</label>
               </td>

               <td valign="top">
                <input  type="text" name="first_name" maxlength="50" size="30"/>
               </td>
              </tr>

              <tr>
               <td valign="top">
                <label for="last_name" style="color:#999;">Last Name *</label>
               </td>
               <td valign="top">
                <input  type="text" name="last_name" maxlength="50" size="30"/>
               </td>
              </tr>

              <tr>
               <td valign="top">
                <label for="email" style="color:#999; font-size:14px">Email Address *</label>
               </td>
               <td valign="top">
                <input  type="text" name="email" maxlength="80" size="30"/>
               </td>
              </tr>

              <tr>
               <td valign="top">
                <label for="telephone" style="color:#999; font-size:14px">Telephone Number</label>
               </td>

               <td valign="top">
                <input  type="text" name="telephone" maxlength="30" size="30"/>
               </td>
              </tr>

              <tr>
               <td valign="top">
                <label for="comments" style="color:#999; font-size:14px">Comments *</label>
               </td>

               <td valign="top">
                <textarea  name="comments"  cols="25" rows="6"></textarea>
               </td>
              </tr>

              <tr>
               <td colspan="2" style="text-align:center">
                <input id="sub" type="submit" value="Submit"/>
               </td>
              </tr>
          </table>

          </form>

          </div><!--end contact form-->

Answer 1

我假设你说在出现错误时没有输出表格，对吗？

这是因为die()终止了页面的处理，包括PHP标记之外的任何内容。您可以尝试从错误中删除die()语句，而是将died()函数放在if / else语句中。

例如：

if (strlen($error_message) > 0) {
    died($error_message);
} else {
    // send the email
}

Answer 2

是的，您已确定自己的问题。不要在脚本中间使用die（）。可能人们会投票决定关闭它，我不打算为你重写简单的代码，但我会冒险给你一个正确的推动方向，并建议这是你想要的脚本的格式：

首先更改提交按钮，使其具有名称属性：

<input id="sub" type="submit" name="SubmitEmailForm" value="Submit"/>

虽然这在此处并不重要，但如果您的网页上有多个表单，则可以确定提交的表单。

在验证脚本中，将errors数组变量初始化为空数组：

function validateEmailForm() {
    $errors = array();
    // All validation here
    // if an error occurs...
    $errors[] = 'Error text here.';
    return $errors;
}

这样，您可以一次捕获所有验证错误，因此您可以向用户提供他们需要修复的完整报告。

然后你的基本结构是：

if (isset($_POST['SubmitEmailForm'])) {
    $errors = validateEmailForm();
    if (count($errors) == 0) {
        // Form was fine, go ahead and process it
        // header(..location of your post-processing script or output..);
        // Make sure you exit to end processing of script
        exit; 

    } else {
        //
        // Output a box containing the errors from $errors using a foreach
        //

    }  
}
//
// Output your form markup here.
//

这是大多数自我发布形式所使用的基本框架，您可以很容易地为这种模式添加点缀。

php联系表单问题

PHP：（send_email.php文件）

联系表格：

2 个答案: