POST requests using curl, sockets, and php-curl

http.php

<?php

// command line
// curl --data "text=foobar" http://localhost:3001/api/decrypt

// File sockets
function http_request($url, $data, $a = null, $b = null) {
  $opts = array('http' =>
      array(
          'method'  => 'POST',
          // 'header'  => 'Content-type: application/x-www-form-urlencoded',
          // 'content' => http_build_query($data),
          'header'  => 'Content-type: application/json',
          'content' => json_encode($data)
      )
  );

  $context  = stream_context_create($opts);

  return file_get_contents($url, false, $context);
}

// curl
function curl_request($url, $data, $json = true, $log = false)
{
    $headers = ['Connection: close'];

    if($json) {
      $headers[] = 'Content-Type: application/json; charset=utf-8';
      $data = json_encode($data);
    } else {
      $headers[] = 'Content-Type: multipart/form-data';
      $data = http_build_query($data);
    }

    $options = [
      CURLOPT_RETURNTRANSFER => 1,                 // return web page's output
      CURLOPT_HTTPHEADER => $headers,                 // all the auth stuff etc
      CURLOPT_HEADER => false,                         // don't return headers
      // CURLINFO_HEADER_OUT => true,
      CURLOPT_FOLLOWLOCATION => true,                 // follow redirects
      CURLOPT_USERAGENT => "curl",   // who am i?
      CURLOPT_AUTOREFERER => true,                    // set referer on redirect
      CURLOPT_CONNECTTIMEOUT => 20,                   // timeout on connect
      CURLOPT_TIMEOUT => 20,                          // timeout on response
      CURLOPT_MAXREDIRS => 3,                         // stop after 2 redirects
      CURLOPT_SSL_VERIFYPEER => false,                // Disabled SSL Cert checks
      CURLOPT_POST => 1,                              // POST method
      CURLOPT_POSTFIELDS => $data,    // everything we are posting
    ];

    if($log) {
      // $verbose = fopen('./curl.log', 'w+');
      $verbose = tmpfile();
      $options[CURLOPT_VERBOSE] = true;
      $options[CURLOPT_STDERR] = $verbose;
    }

    $ch = curl_init($url);
    curl_setopt_array($ch, $options);

    $response = [
      "body" => curl_exec($ch),
      "info" => curl_getinfo($ch),
      "error" => curl_error($ch)
    ];

    if($log) {
      rewind($verbose);
      $response["log"] = stream_get_contents($verbose);
      fclose($verbose);
    }

    curl_close($ch);
    return $response;
}