curl login 2

<?php
    $username = "KULLANICIADIM";
    $password = "ŞİFREM";
    $useragent = "Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101206 Ubuntu/10.10 (maverick) Firefox/3.6.13";
    $cookie=$username.".txt";

    $url="https://instagram.com/accounts/login/?force_classic_login";

    $ch  = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_COOKIEJAR, dirname(__FILE__)."/".$cookie);
    curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__)."/".$cookie);
    curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

    $page = curl_exec($ch);

    // try to find the actual login form
    if (!preg_match('/<form method="POST" id="login-form" class="adjacent".*?<\/form>/is', $page, $form)) {
        die('Failed to find log in form!');
    }

    $form = $form[0];

    // find the action of the login form
    if (!preg_match('/action="([^"]+)"/i', $form, $action)) {
        die('Failed to find login form url');
    }

    $url2 = $action[1]; // this is our new post url
    // find all hidden fields which we need to send with our login, this includes security tokens
    $count = preg_match_all('/<input type="hidden"\s*name="([^"]*)"\s*value="([^"]*)"/i', $form, $hiddenFields);

    $postFields = array();

    // turn the hidden fields into an array
    for ($i = 0; $i < $count; ++$i) {
        $postFields[$hiddenFields[1][$i]] = $hiddenFields[2][$i];
    }

    // add our login values
    $postFields['username'] = $username;
    $postFields['password'] = $password;

    $post = '';

    // convert to string, this won't work as an array, form will not accept multipart/form-data, only application/x-www-form-urlencoded
    foreach($postFields as $key => $value) {
        $post .= $key . '=' . urlencode($value) . '&';
    }

    $post = substr($post, 0, -1);

    // set additional curl options using our previous options
    curl_setopt($ch, CURLOPT_URL, "https://instagram.com/".$url2);
    curl_setopt($ch, CURLOPT_REFERER, $url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
   $page = curl_exec($c);
    curl_close($c);
    $page = str_replace("<head>","<head>".PHP_EOL."<base href='https://www.instagram.com/'>",$page);
    echo $page;

?>