Why doesn't the PayPal curl request work?

Question

PHP

In general, such a disaster: everything works fine on the PayPal test server, but there is a problem on the real server.

$data = array(
        'cmd' => '_notify-synch',
        'tx' => $pdt_tx,
        'at' => $PDT_TOKEN
    );
    $opts = array(
        CURLOPT_URL => 'https://www.paypal.com/cgi-bin/webscr',
        CURLOPT_HEADER => 0,
        CURLOPT_NOBODY => 0,
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_POST => 1,
        CURLOPT_FOLLOWLOCATION => 1,
        CURLOPT_SSL_VERIFYPEER => 1,
        CURLOPT_POSTFIELDS => http_build_query($data),
        CURLOPT_VERBOSE => true
    );

    $curlHandler = curl_init();
    curl_setopt_array( $curlHandler, $opts );
    $output = curl_exec($curlHandler);
    curl_close($curlHandler);

This code is not executed, it just goes into eternal loading (cannot connect to the server). Moreover, as I said, everything goes great to the sandbox.paypal.com URL

Answer 1

Problem solved. For anyone who might be looking for a solution
, paypal has a battle url like this:
paypal.com/webscr

Answer 2

see that verbose outputs
CURLOPT_SSL_VERIFYPEER to zero set