Header（）不重定向PHP [英] Header() is not redirecting PHP

问题描述

我正在使用以下PHP代码来检查会话。但如果会话未登录，则页面不重定向只显示黑页。

I am using following PHP code to check session. But if the session is not logged into then page is not redirect just show the black page.

我的条件是对的！它击中了标题函数..
这是我的代码：

My If condition is right ! it is hitting header function .. Here is my code:

if(
    !isset($_SESSION['SESS_MEMBER_ID']) 
    || (trim($_SESSION['SESS_MEMBER_ID']) == '') 
    AND !isset($fb_login)
) {
    header("location:login.php?msg=Please+Login+Again.");
}

建议欢迎！

HTTP/1.1 200 OK
Date: Wed, 10 Oct 2012 10:57:14 GMT
Server: Apache/2.2.15 (CentOS)
X-Powered-By: PHP/5.3.3
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

推荐答案

如果您正在使用 header（Location：）; 输出内容后请确保先放入 ob_start（）; 在脚本中。 ob_start（）; 缓冲你的脚本，所以在你调用 ob_end（）; 或结束之前不输出任何内容到达文件。在内容输出到浏览器后调用标题（位置：）; 可能会导致问题。

If you're using header("Location: "); after you've output content make sure you've put ob_start(); earlier in the script. ob_start(); buffers your script, so nothing is output until you either call ob_end(); or the end of the file is reached. Calling header("Location: "); after content has already been output to the browser can cause problems.

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