Trying to send a POST request using php, No matter what i do i get “HTTP ERROR 500”

Question

To make an HTTP request, someone suggested I try using PHP and gave me a piece of code to work on:

$url = \'https://example.com/dashboard/api\';
$data = array(\'         


        

Answer 1

      $url = 'https://domainname.com/dashboard/api';
      $params = array('to' => PHONE_NUMBER, 'from' => SENDER_ID, 'message' => TEXT, 'email' => EMAIL, 'api_secret' => SECRET, 'unicode' => BOOLEAN, 'id' => IDENTIFIER);      
      $query_content = http_build_query($params);
      $context = stream_context_create([
          'http' => [
              'header'  => [
                   'Content-type: application/x-www-form-urlencoded',
                   'Content-Length: ' . strlen($query_content)
              ],
          'method'  => 'POST',
          'content' => $query_content
        ]
      ]);
      $result = file_get_contents($url, false, $context);

Answer 2

$url = 'https://domainname.com/dashboard/api';
$header = [
    'Content-type: application/x-www-form-urlencoded',
];
$params = array('to' => PHONE_NUMBER, 'from' => SENDER_ID, 'message' => TEXT, 'email' => EMAIL, 'api_secret' => SECRET, 'unicode' => BOOLEAN, 'id' => IDENTIFIER);
$c = curl_init();
curl_setopt($c, CURLOPT_URL,$url);
curl_setopt($c, CURLOPT_POST, true);
curl_setopt($c, CURLOPT_POSTFIELDS, $params);
curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
curl_setopt($c, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($c, CURLOPT_HTTPHEADER, $header);
curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
$res = curl_exec($c);
var_dump($res);