重定向请求永远不会完成 - Ant脚本与PHP脚本错误？

坦率地说，我不是一个编码怪胎。基本上，这个PHP脚本验证名称&“通讯订阅”表单的电子邮件字段。那么，所有浏览器上的一切似乎都可以正常工作。 2天后，此脚本停止在IE9的工作& Firefox 14-16。它在Chrome上运行良好。请问你们让我知道，是什么原因导致了这个错误？重定向请求永远不会完成 - Ant脚本与PHP脚本错误？

php脚本名为signup.php

在代码中的“回声脚本警报”似乎并没有在FF & IE9工作。它在Chrome上运行得非常好。这正是我的问题。

Firefox上的错误 - Firefox检测到服务器以永远不会完成的方式重定向该地址的请求。此问题有时可能由禁用或拒绝接受Cookie引起。

Firefox上的操作点 - 所有必要的操作都是为了应对此错误。什么都没有解决。

IE9上的错误 - 它只是不响应，并停留在同一页面上。

<?php 

ob_start(); 
session_start(); 

/*Name Validation.*/ 
function checkName($name) 
{ 
$nAccept = array("&", "’", " ", "-"); 

if (!ctype_alpha(str_replace ($nAccept, "", $name))) 
    { 
     return TRUE; 
    } 
} 

/*Email Validation.*/ 
function checkEmail($email) 
{ 
    if(mb_eregi("^[a-zA-Z0-9_][email protected][a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]+$]", $email)) 
    { 
     return FALSE; 
    } 
    if (!preg_match("/^[^@]{1,64}@[^@]{1,255}$/i", $email)) 
    { 

     return false; 
    } 

    list($Username, $Domain) = explode("@",$email); 

    if(getmxrr($Domain, $MXHost)) 
    { 
     return TRUE; 
    } 
    else 
    { 
     if(fsockopen($Domain, 25, $errno, $errstr, 30)) 
     { 
     return TRUE; 
     } 
     else 
     { 
     return FALSE; 
     } 
    } 
} 


function isInjected($str) { 
    $injections = array('(\n+)', 
    '(\r+)', 
    '(\t+)', 
    '(%0A+)', 
    '(%0D+)', 
    '(%08+)', 
    '(%09+)' 
    ); 
    $inject = join('|', $injections); 
    $inject = "/$inject/i"; 
    if(preg_match($inject,$str)) { 
     return true; 
    } 
    else { 
     return false; 
    } 
} 

if(checkName($_REQUEST['name']) == TRUE) { 
echo "<script>alert('Please enter a Valid Name.');history.back();</script>"; 
} 

elseif (!isset($_POST['email'])) { 
echo "<script>alert('Please ensure you have completed all fields before submitting the form. No fields to be left blank.');history.back();</script>"; 
} 

elseif (empty($_POST['name']) || empty($_POST['email'])) { 
echo "<script>alert('Please ensure you have completed all fields before submitting the form. No fields to be left blank.Type in only one valid email address.');history.back();</script>"; 
} 

elseif (isInjected($_POST['email'])) { 
echo "<script>alert('Please ensure you have completed all fields before submitting the form. No fields to be left blank.Type in only one valid email address.');history.back();</script>"; 
} 

elseif(checkEmail($_REQUEST['email']) == FALSE) { 
echo "<script>alert('Entered E-Mail is Invalid or The E-Mail does not belong to a valid domain.');history.back();</script>"; 
} 

else{ 

$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password="root"; // Mysql password 
$db_name="test"; // Database name 
$tbl_name="connect_members_temp"; //table name 

mysql_connect("$host", "$username", "$password")or die("cannot connect to server"); 
mysql_select_db("$db_name")or die("cannot select DB"); 

$confirm_code=md5(uniqid(rand())); 

$name=$_POST['name']; 
$email=$_POST['email']; 

$sql="INSERT INTO $tbl_name(confirm_code, name, email)VALUES('$confirm_code', '$_POST[name]', '$_POST[email]')"; 
$result=mysql_query($sql); 

} 
mysql_close(); 

if($result) 
{ 

// send e-mail to 
$to= '[email protected]'; 
$thankyou_page = "before_subscription.html"; 
$email_page = "email_connectivity.html"; 
$data_page = "email_not_found.html"; 

$subject="Confirm Your Subscription with XXXXX"; 


$header="from: XXXXX <[email protected]>"; 

$message="Your Confirmation link \r\n"; 
$message.="Click on this link to confirm your subscription \r\n"; 
$message.="http://localhost/XXXXX/confirmation.php?passkey=$confirm_code"; 

// send email 
$sentmail = mail($to,$subject,$message,$header); 

} 

else 
{ 
header("Location: $data_page"); 
} 

if($sentmail) 
{ 
header("Location: $thankyou_page"); 
} 
else{ 
header("Location: $email_page"); 
} 

?>

下面是HTML表单

<form action="signup.php" method="post"> 
     <fieldset> 
      <legend>Digital Newsletter</legend> 
      <div class="fl_left"> 
      <input type="text" name="name" value="Enter name here&hellip;" onfocus="this.value=(this.value=='Enter name here&hellip;')? '' : this.value ;" /> 
      <input type="text" name="email" value="Enter email address&hellip;" onfocus="this.value=(this.value=='Enter email address&hellip;')? '' : this.value ;"/> 
      </div> 
      <div class="fl_right"> 
      <input type="submit" name="newsletter_go" id="newsletter_go" value="&raquo;"/> 
      </div> 
     </fieldset> 
     </form>

来源

2012-10-13 unanswerable

在'echo'后面使用'exit'。如果在重定向之前已经回复了重定向，则重定向不起作用。 – ThinkingMonkey

@ThinkingMonkey - 绝对，这是工作。这应该是正确的答案。非常感谢你。 – unanswerable

欢迎................. – ThinkingMonkey