Sending a 404 header with PHP

windlike

                               
               
                ?php
header("HTTP/1.0 404 Not Found");
include("/var/www/html/site.domain.com/err/404.php");
?>
Reference:
http://www.webmasterworld.com/forum88/784.htm
http://hk2.php.net/header
               
                ?php
//This works in 5.2.3
//First function turns SSL on if it is off.
//Second function detects if SSL is on, if it is, turns it off.
//==== Redirect... Try PHP header redirect, then Java redirect, then try http redirect.:
function redirect($url){
    if (!headers_sent()){    //If headers not sent yet... then do php redirect
        header('Location: '.$url); exit;
    }else{                    //If headers are sent... do java redirect... if java disabled, do html redirect.
        echo '';
        echo 'window.location.href="'.$url.'";';
        echo '';
        echo '';
        echo '.$url.'" />';
        echo ''; exit;
    }
}//==== End -- Redirect
//==== Turn on HTTPS - Detect if HTTPS, if not on, then turn on HTTPS:
function SSLon(){
    if($_SERVER['HTTPS'] != 'on'){
        $url = "https://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
        redirect($url);
    }
}//==== End -- Turn On HTTPS
//==== Turn Off HTTPS -- Detect if HTTPS, if so, then turn off HTTPS:
function SSLoff(){
    if($_SERVER['HTTPS'] == 'on'){
        $url = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
        redirect($url);
    }
}//==== End -- Turn Off HTTPS
?>


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/1222/showart_1885728.html