<?php

namespace lib\Http;

class HTTP
{
  protected array $headers = [];

  public function __construct()
  {
    $this->headers =         foreach ($_SERVER as $name => $value) {
      if (str_starts_with($name, 'HTTP_')) {
          $key = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))));
          $headers[$key] = $value;
      }
  }
  }

  public function getHeaders(): array
  {
    return $this->headers;
  }

  public function getHeader(string $key): ?string
  {
    return $this->headers[$key] ?? null;
  }
}