Question

关于PHP+apache+mysql配置问题：出现这样的提示错误Warning: Cannot modify header information - headers

Warning: Cannot modify header information - headers already sent by (output started at E:\wamp\www\admin\includes\config.inc.php:1) in E:\wamp\www\admin\admin\admin_login.php on line 33
下面是admin_login.php 文件里面的程序
<?php
require_once ('../includes/config.inc.php');
require_once (DIR_FS_CLASSES . 'dbquery.class.php');
if($_POST['check_code'] != $_SESSION["checkcode"]){
$URLredirect = "index.php?error=code";
}else{
$rs = $db->sys_checklogin($_POST["username"],$_POST["password"]);
if(!$rs){
$URLredirect = "index.php?error=inexistence";
}elseif($rs['operator_status'] == 0){
$URLredirect = "index.php?error=status";
}else{$URLredirect = "cpanel.php";
$_SESSION['user_id'] = $rs["operator_id"];
if ('admin' == $rs["operator_username"])
{
$_SESSION['super_admin'] = true;
} elseif (!empty($rs['agents_id']))
{
$_SESSION['agents_id'] = $rs['agents_id'];
$_SESSION['agents_father'] = $rs['agents_father'];
}
}
}
header("Location:$URLredirect");
exit;
?>

Answer 1

php.ini 中有配置，在header之前不能有输出，如不想出现此警告，可以修改配置文件

Answer 2

header()已经发送或者 之前有空格，输入之类的，查看一下config.inc.php这个文件

Answer 3

在header("Location:$URLredirect");之前不能有任何的输出，你包含文件中肯定有输出语句

Answer 4

去掉 bom 头 不懂 hi 我