为什么我的Cookie不设置? [英] Why are my cookies not setting?

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问题描述

我有以下PHP函数:

  function validateUser($ username){
session_regenerate_id
$ _SESSION ['valid'] = 1;
$ _SESSION ['username'] = $ username;
setcookie('username2',$ username,time()+ 60 * 60 * 24 * 365);
header(Location:../new.php);
}

然后我提取cookie:



echo $ _COOKIE ['username2']; exit(); c>





只有问题,它是空白。任何想法?



UPDATE:
这是函数的调用方式:

  if(mysql_num_rows($ queryreg)!= 0){
$ row = mysql_fetch_array($ queryreg,MYSQL_ASSOC);
$ hash = hash('sha256',$ row ['salt']。hash('sha256',$ password));
if($ hash == $ row ['password']){
if($ row ['confirm'] == 1){
if(isset($ remember)){
setcookie('username',$ username,time()+ 60 * 60 * 24 * 365);
setcookie('password',$ password,time()+ 60 * 60 * 24 * 365);
} else {
setcookie('username','',time() - 3600);
setcookie('password','',time() - 3600);
}
validateUser($ username);

我没有包括所有 if()语句,以节省一些空间。

解决方案

尝试添加path = /,

 <$ c $ 

c> setcookie('password',$ password,time()+ 60 * 60 * 24 * 365,'/');

还要确保cookie是输出的第一个输出


像其他标题一样,cookies必须在
脚本的任何输出之前发送这是一个协议限制)。



I have the following PHP function:

function validateUser($username){
    session_regenerate_id (); 
    $_SESSION['valid'] = 1;
    $_SESSION['username'] = $username;
    setcookie('username2',$username,time()+60*60*24*365);
    header("Location: ../new.php");
}

And then I fetch the cookie:

echo $_COOKIE['username2']; exit();

(I only put exit() for debugging purposes)

Only problem, it's coming out blank. Any ideas?

UPDATE: This is how the function is called:

    if(mysql_num_rows($queryreg) != 0){
    $row = mysql_fetch_array($queryreg,MYSQL_ASSOC);
    $hash = hash('sha256', $row['salt'] . hash('sha256', $password));
    if($hash == $row['password']) {
        if($row['confirm'] == 1){
            if(isset($remember)){
                setcookie('username',$username,time()+60*60*24*365);
                setcookie('password',$password,time()+60*60*24*365);
            } else {
                setcookie('username','',time()-3600);
                setcookie('password','',time()-3600);
            }
            validateUser($username);

I didn't include all the if() statements to save some space.

解决方案

try adding the path = /, so that the cookie works for the whole site not just the current directory (that has caught me out before)

example

setcookie('password',$password,time()+60*60*24*365, '/'); 

also make sure the cookie is the first thing being output as advised in the php manual (this has caught me out before too)

Like other headers, cookies must be sent before any output from your script (this is a protocol restriction).

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