在服务器站点的php中发出警告的原因 [英] Reason for warning in php at server site

问题描述

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\inetpub\vhosts\outboxnews.co.in\httpdocs\admin.php:3) in C:\inetpub\vhosts\outboxnews.co.in\httpdocs\admin.php on line 4

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\inetpub\vhosts\outboxnews.co.in\httpdocs\admin.php:3) in C:\inetpub\vhosts\outboxnews.co.in\httpdocs\admin.php on line 4

我的代码是

my code is

<?php
session_start();
include("connect.php");
$u_name = $_POST['email'];
$u_pass = $_POST['pwd'];
if ($_POST['Submit']=='Login')
{
$sql = "SELECT * FROM user WHERE
            username = '$u_name' AND
            password = '$u_pass'";

$result = mysql_query($sql) or die (mysql_error());
$cmd=mysql_fetch_array($result);
$num = mysql_num_rows($result);


if ($num)
{


$_SESSION['username'] = $u_name;
    echo "META HTTP-EQUIV=Refresh Content=0; URL=a.php";

    exit;



}
else
{
   $errore_msg="Your username or Password is incorrect";


}

}


?>

推荐答案

u_name =

u_name =

_POST [' 电子邮件'];

_POST['email'];

u_pass =

u_pass =

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