PHP / cURL - 重定向并保持函数所在的位置

Question

我使用这个代码/脚本：

<?php

//Upload a blank cookie.txt to the same directory as this file with a CHMOD/Permission to 777
function login($url,$data){
    $fp = fopen("cookie.txt", "w");
    fclose($fp);
    $login = curl_init();
    curl_setopt($login, CURLOPT_COOKIEJAR, "cookie.txt");
    curl_setopt($login, CURLOPT_COOKIEFILE, "cookie.txt");
    curl_setopt($login, CURLOPT_TIMEOUT, 40000);
    curl_setopt($login, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($login, CURLOPT_URL, $url);
    curl_setopt($login, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($login, CURLOPT_FOLLOWLOCATION, TRUE);
    curl_setopt($login, CURLOPT_POST, TRUE);
    curl_setopt($login, CURLOPT_POSTFIELDS, $data);
    ob_start();
    return curl_exec ($login);
    ob_end_clean();
    curl_close ($login);
    unset($login);    
}                  

function grab_page($site){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($ch, CURLOPT_TIMEOUT, 40);
    curl_setopt($ch, CURLOPT_HTTPHEADER,array("Expect:"));
    curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt");
    curl_setopt($ch, CURLOPT_URL, $site);
    ob_start();
    return curl_exec ($ch);
    ob_end_clean();
    curl_close ($ch);
}

function post_data($site,$data,$data){
    $datapost = curl_init();
        $headers = array("Expect:");
     curl_setopt($datapost, CURLOPT_URL, $site);
         curl_setopt($datapost, CURLOPT_TIMEOUT, 40000);
         curl_setopt($datapost, CURLOPT_HEADER, FALSE);
         curl_setopt($datapost, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($datapost, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
     curl_setopt($datapost, CURLOPT_POST, TRUE);
     curl_setopt($datapost, CURLOPT_POSTFIELDS, $data);
         curl_setopt($datapost, CURLOPT_COOKIEFILE, "cookie.txt");
    ob_start();
    return curl_exec ($datapost);
    ob_end_clean();
    curl_close ($datapost);
    unset($datapost);   

}

?>

这个脚本在我的另一个网站上的vps中运行并自动完成一些功能。我希望在执行该功能后重定向他留在我的 vps 上的原始网站。

示例：我的代码/脚本像 google.com/page1 一样工作，自动执行功能到 page4，当我使用重定向时，他再次开始到 google.com/page1，我想在重定向时保留 page4。

原网站有自动刷新功能吗？

抱歉英语不好。

Answer 1

你可以使用 curl_getinfo()。

http://php.net/manual/en/function.curl-getinfo.php

echo curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);

示例：

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($ch, CURLOPT_TIMEOUT, 40);
    curl_setopt($ch, CURLOPT_HTTPHEADER,array("Expect:"));
    curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt");
    curl_setopt($ch, CURLOPT_URL, $site);
    ob_start();
    curl_exec ($ch);
$last_redirected_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
    ob_end_clean();
    curl_close ($ch);

echo $last_redirected_url;