在localhost上运行但在服务器上不起作用。 （PHP cURL）

Question

I received an captcha in my localhost but the same code server does not work. I try to run my own server with chmod full authority also gave full authority in the cookie.txt file. When I run the perfect localhost. I think, it does not work because of cookie.txt

<?php
    header("Content-type: image/jpeg");
function open($url, $cookie = "")
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2');
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_COOKIE, 1);
            if($cookie != ""){
                    curl_setopt($ch, CURLOPT_COOKIEJAR, realpath(dirname(__FILE__))."\cookie.txt");
            }else{
                    curl_setopt($ch, CURLOPT_COOKIEFILE, realpath(dirname(__FILE__))."\cookie.txt");
            }
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_REFERER, "http://www.xxxxxx.com/caller/");
    $result = curl_exec($ch); 
    curl_close($ch);
    return $result;
}
    open("http://www.xxxxxx.com/caller/", 1);
    echo open("http://www.xxxxxx.com/security.php?id=".(floor(rand() * 1000) + 1), 0);
?>

Can you help me Please?

Answer 1

It's probably a security issue. Imagine that an attacker could change your php files and take over your application. That's why Apache server is running under user www-data, which doesn't have access to your files other than read-only. The same applies for directories.

if($cookie != "") {
                curl_setopt($ch, CURLOPT_COOKIEJAR, "/tmp/some_better_name_cookie.txt");
} else {
                curl_setopt($ch, CURLOPT_COOKIEFILE, "/tmp/some_better_name_cookie.txt");
}