PHP - 会话不会导致带标头的重定向

问题描述：

I am trying to make the user get redirected to the index.html page in case the $_SESSION['loggedin'] is already set. For some reason, it doesn't redirect the user, although the $_SESSION['loggedin'] when echoed returns a value.

if(!empty($_SESSION['loggedin'])) { header('Location: index.html');};

What am I doing wrong here?

我试图让用户被重定向到index.html页面以防$ _SESSION ['loggedin' 已经设定好了。出于某种原因，它不会重定向用户，虽然回显时$ _SESSION ['loggedin']会返回一个值。 p>

  if if（！empty（$ _ SESSION ['  loggedin']））{header（'Location：index.html'）;}; 
  code>  pre> 
 
 我在这里做错了什么？ p>

答

header('Location: index.html'); sets an http header which needs to be set before any content is sent, i.e. before any echo. Also you should terminate your script after you set the location header.

PHP - 会话不会导致带标头的重定向

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