How to properly connect via cUrl with a proxy?

Question

PHP

It seems that the connection to api vk was temporarily banned, I'm trying to send a request through a proxy

<?php
        $str = 'https://api.vk.com/method/wall.get?.....';
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $str); 
        curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.0.1) Gecko/2008070208');
        curl_setopt($curl, CURLOPT_PROXY, 'ip:port');
        curl_setopt($curl, CURLOPT_PROXYUSERPWD, 'user:pwd');
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_FAILONERROR, true);
        curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
        $json = curl_exec($curl);
        
        $curl_error_code = curl_errno($curl);
        $curl_error_desc = curl_error($curl);
        $curl_info = curl_getinfo($curl, CURLINFO_HTTP_CODE);

        if ($curl_error_code > 0) {
            exit($curl_error_desc . ' (' . $curl_error_code . '); HTTP-код: ' . $curl_info);
        }    
        curl_close($curl);
         var_dump(json_decode($json));

Returns

Connection timed out after 10001 milliseconds (28); HTTP-код: 0

At the same time, the same code is successfully executed from another server, I don’t understand what the problem is, it’s like the proxy doesn’t work like that, or something else ... tell me where to dig?

Answer 1

If I'm not mistaken, then different providers allow CURL options in different ways.
Most likely, CURL is disabled on this hosting.