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<?php
declare(strict_types=1);
namespace Laminas\Diactoros;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UriInterface;
use function strtolower;
/**
* HTTP Request encapsulation
*
* Requests are considered immutable; all methods that might change state are
* implemented such that they retain the internal state of the current
* message and return a new instance that contains the changed state.
*/
class Request implements RequestInterface
{
use RequestTrait;
/**
* @param null|string|UriInterface $uri URI for the request, if any.
* @param null|string $method HTTP method for the request, if any.
* @param string|resource|StreamInterface $body Message body, if any.
* @param array $headers Headers for the message, if any.
* @throws Exception\InvalidArgumentException For any invalid value.
*/
public function __construct($uri = null, ?string $method = null, $body = 'php://temp', array $headers = [])
{
$this->initialize($uri, $method, $body, $headers);
}
/**
* {@inheritdoc}
*/
public function getHeaders(): array
{
$headers = $this->headers;
if (
! $this->hasHeader('host')
&& $this->uri->getHost()
) {
$headers['Host'] = [$this->getHostFromUri()];
}
return $headers;
}
/**
* {@inheritdoc}
*/
public function getHeader(string $name): array
{
if (empty($name) || ! $this->hasHeader($name)) {
if (
strtolower($name) === 'host'
&& $this->uri->getHost()
) {
return [$this->getHostFromUri()];
}
return [];
}
$header = $this->headerNames[strtolower($name)];
return $this->headers[$header];
}
}