当Recaptcha无效时如何保留数据字段

Question

我的php联系表格工作正常，我只需要上的帮助，以便在recaptcha错误或无效时如何保留数据字段。我需要在哪里添加更多脚本才能完成此操作？ 非常感谢您的任何答案。我仍然是新的PHP。这是所有在一个页面调用：CONTACTFORM.php

<?php 


require_once('recaptchalib.php'); 

$publickey = "xxxxxxxxx"; 
$privatekey = "xxxxxxxx"; 
$error = false; 
$message = ''; 



if (isset($_POST['send'])){  
    $resp = recaptcha_check_answer ($privatekey, 
           $_SERVER["REMOTE_ADDR"], 
           $_POST["recaptcha_challenge_field"], 
           $_POST["recaptcha_response_field"]); 

    if (!$resp->is_valid) 
    { 
     $error = true;  
     $message = 'Invalid Captcha Please try again'; 
    } 

     if(!$error) 
    { 
     $emailTitle = 'Email from website!'; 
     $emailAddress = 'peace@hotmail.com'; 

     /* Gathering Data Variables */ 

     $emailField = $_POST['email']; 
     $phoneField = $_POST['phone']; 
     $nameField = $_POST['name']; 
     $subjectField = $_POST['subject']; 
     $messageField = $_POST['message']; 

     $body = <<<EOD 
<br><hr><br> 
Email: $emailField <br /> 
Phone: $phoneField <br /> 
Name: $nameField <br /> 
Subject: $subjectField <br /> 
Message: $messageField <br /> 
EOD; 
     $headers = "From: $emailField\r\n"; 
     $headers .= "Content-type: text/html\r\n"; 
     $success = mail("$emailAddress", "$emailTitle", "$body", "$headers"); 

     $message = "Thank you! Your message has been sent."; 
    } 
} 
?> 

<form id="form1" name="form1" method="post" action="contactform.php"> 
     <table width="100%" border="0" cellspacing="6" cellpadding="0"> 
     <tr> 
      <td align="right"><label for="email" class="titulos">Email: </label></td> 
      <td align="left"><input name="email" type="text" id="email" size="35" maxlength="50" /> 
      *</td> 
     </tr> 
     <tr> 
      <td align="right"><label for="phone" class="titulos">Phone: </label></td> 
      <td align="left"><input name="phone" type="text" id="phone" size="35" maxlength="50" /></td> 
     </tr> 
     <tr> 
      <td align="right"><label for="name" class="titulos">Name:</label></td> 
      <td align="left"><input name="name" type="text" id="name" size="35" maxlength="30" /> 
      *</td> 
     </tr> 
     <tr> 
      <td align="right"><label for="subject" class="titulos">Subject:</label></td> 
      <td align="left"><input name="subject" type="text" id="subject" size="35" maxlength="60" /></td> 
     </tr> 
     <tr> 
      <td align="right" valign="top"><label for="message" class="titulos">Message:</label></td> 
      <td align="left"><p> 
      <textarea name="message" cols="27" rows="5" id="message"></textarea> 
      *</p></td> 
     </tr> 
     <tr> 
      <td align="right">&nbsp;</td> 
      <td align="left"> 
      <?php echo recaptcha_get_html($publickey); 
    ?> 


</td> 
     </tr> 
     <tr> 

      <td align="right"><label for="reset"></label></td> 
      <td align="left"><label for="send"></label> 
      <input name="send" type="submit" id="send" onclick="MM_validateForm('email','','RisEmail','name','','R','message','','R');return document.MM_returnValue" value="Send Email" /> <label for="reset"></label> 
      <input type="reset" name="reset" id="reset" value="Reset form" /></td> 
     </tr> 
     <tr> 
      <td align="right">&nbsp;</td> 
      <td align="left" class="content">(*) Are Required fields</td> 
     </tr> 
     <tr> 
      <td colspan="2" align="center"><?php echo $message; ?> 
      </td> 
      </tr> 
     </table> 
    </form> 

Answer 1

您可以将它设置在您的输入字段的“值”属性。像

<input name="email" type="text" value="<?php echo (isset($_POST['email']) ? htmlspecialchars($_POST['email']) : ''); ?>" />