PHP Socket Connection to an API - php

Question

I'm trying to connect to an API using PHP Sockets.
I've tried it in many ways, but I can't get it working. I know there is other answers, but no one works. I really can't achieve it. I'm trying it at least two days.
Here is the error:
php_network_getaddresses: getaddrinfo failed: Name or service not known
Code (Sockets - It does not work):
var $url = 'api.site.com.br/';
public function getUsers(){
$path = "users/?accesstoken=c24f506fe265488435858925096bc4ad7ba0";
$packet= "GET {$path} HTTP/1.1\r\n";
$packet .= "Host: {$url}\r\n";
$packet .= "Connection: close\r\n";
if (!($socket = fsockopen($this->url,80,$err_no,$err_str))){
die( "\n Connection Failed. $err_no - $err_str \n");
}
fwrite($socket, $packet);
return stream_get_contents($socket);
}
Code (Curl - It Works!):
public function getUsers2(){
$path = "users/?accesstoken=c24f506fe265488435858925096bc4ad7ba0";
$method = 'GET';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->url . $path);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
$output = curl_exec($ch);
$curl_error = curl_error($ch);
curl_close($ch);
return $output;
}
I can't give to you the correct URL, but the URL is working with Curl, so it should work with sockets.

Answer 1

I solved it by doing the following:
public function getUsers(){
$path = "users/?accesstoken=c24f506fe265488435858925096bc4ad7ba0";
$fp = fsockopen($this->url, 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br />\n";
} else {
$out = "GET /{$path} HTTP/1.1\r\n";
$out .= "Host: {$this->url}\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
}

Answer 2

Connecting to a host via socket is not connecting to a URL.
Wrong: api.site.com.br/
Wrong: http://api.site.com.br/
Wrong: https//api.site.com.br/api/
Right: api.site.com.br
You connect to a host. This can be a domainname or an IP. Neither of those has a slash in it.