执行php代码后页面受到影响

Question

任何人都可以帮我解决这个问题。我试图建立基本的联系表单，但当执行PHP代码显示错误消息时，页面看起来没有背景颜色和页脚，而当没有错误时它看起来很好？

主要形式的文件contact.php

<form name="contactform" method="post" action="send_form_email.php"> 
<table width="450px"> 
<tr> 
<td valign="top"> 
    <label for="first_name">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">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">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">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">Comments *</label> 
</td> 
<td valign="top"> 
    <textarea name="comments" maxlength="1000" cols="25" rows="6"></textarea> 
</td> 
</tr> 
<tr> 
<td colspan="2" style="text-align:center"> 
    <input type="submit" value="Submit"> <a href="http://www.freecontactform.com/email_form.php">Email Form</a> 
</td> 
</tr> 
</table> 
</form> 

和PHP代码来执行代码

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

// EDIT THE 2 LINES BELOW AS REQUIRED 
$email_to = "you@yourdomain.com"; 
$email_subject = "Your email subject line"; 


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

$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); 
    ?> 


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

    Thank you for contacting us. We will be in touch with you very soon. 

    <?php 
    } 
    ?> 

Answer 1

您需要添加 “}” 排队你的PHP的8删除

<?php 
} 
?> 

从PHP结束。

完全矫正

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

// EDIT THE 2 LINES BELOW AS REQUIRED 
$email_to = "you@yourdomain.com"; 
$email_subject = "Your email subject line"; 

// added this 
} 

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

$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); 
    ?> 


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

    Thank you for contacting us. We will be in touch with you very soon.