使用輸出緩衝寫入後，使用標題功能重定向時遇到問題

Question

我想在5秒鐘後重定向用戶，此小代碼片段在5秒後重定向。

<?php 
    ob_start(); 

    echo "Thank you for your input"; 
    header("Refresh: 5; url=http://www.google.com"); 
    ob_end_flush(); 
    ?> 

但是，當我嘗試將它實現到我的應用程序時，什麼都不會發生。這裏頭功能不起作用。

<?php 

$name = ""; 
$email = ""; 
$subject = ""; 
$comments = ""; 
$nameError = ""; 
$emailError = ""; 
$subjectError = ""; 
$timestamp = date("Y-m-d H:i:s"); 
$x = 5; 
$userIP = $_SERVER['REMOTE_ADDR']; 
function filterData($data) { 
$data = mysql_real_escape_string($data); 
return $data; 
} 
$connection = mysql_connect('----', '----', '-----'); 

$select_database = mysql_select_db("contact"); 

if ($_SERVER["REQUEST_METHOD"] == "POST") { 
//handles the name 
$name = filterData($_POST["name"]); 
if (empty($name)) { 
$nameError = "please don't leave the name field blank"; 
} 

//handles the email 
$email = filterData($_POST["email"]); 
if (empty($email)) { 
$emailError = "please don't leave the email field blank"; 
} 

//handles the subject 
$subject = filterData($_POST["subject"]); 
if (empty($subject)) { 
$subjectError = "please don't leave this field blank"; 
} 

$comments = filterData($_POST["comments"]); 

} 

$insertation = "INSERT INTO contactinfo (name, email, subject, date, comments, ip) 
VALUES ('$name', '$email', '$subject', '$timestamp', '$comments', '$userIP')"; 

$insertationQuery = mysql_query($insertation, $connection); 

ob_start(); 

echo "Thank you for your input"; 
header("Refresh: 5; url=http://www.google.com"); 
ob_end_flush(); 

?> 

我已經嘗試在開始和結束分別放置ob_start（）和ob_end_flush（）。但是，這似乎仍然不起作用。

Answer 1

header必須在任何迴應之前調用。因此請在header之後放置您的echo。

header("Refresh: 5; url=http://www.google.com"); 
echo "Thank you for your input"; 

http://php.net/manual/en/function.header.php#97114