A straightforward PHP script I created for logging into a specific webpage runs smoothly on my localhost using Wamp server. However, when I attempt to run it on Heroku, I encounter a response like this: [image link](https://i.stack.imgur.com/uilks.png).
The script itself is quite simple:
<?php
$username = "username";
$password = "password";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "url");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt ($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array( 'user[username]'=>$username, 'user[password]'=>$password)));
curl_setopt ($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]);
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($ch, CURLOPT_COOKIESESSION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
$content = curl_exec($ch);
echo $content;
?>
I'm puzzled as to why the script doesn't work on Heroku. Could there be an issue with Heroku or am I simply lucky that it functions correctly on my Wamp server? I've also tested running the script on other free hosting platforms, but they don't support the CURLOPT_FOLLOWLOCATION parameter, causing the script to fail.