<?php
namespace Automattic\WooCommerce\GoogleListingsAndAds\Vendor\GuzzleHttp\Handler;
use Automattic\WooCommerce\GoogleListingsAndAds\Vendor\GuzzleHttp\Utils;
/**
* @internal
*/
final class HeaderProcessor
{
/**
* Returns the HTTP version, status code, reason phrase, and headers.
*
* @param string[] $headers
*
* @throws \RuntimeException
*
* @return array{0:string, 1:int, 2:?string, 3:array}
*/
public static function parseHeaders(array $headers): array
{
if ($headers === []) {
throw new \RuntimeException('Expected a non-empty array of header data');
}
$parts = \explode(' ', \array_shift($headers), 3);
$version = \explode('/', $parts[0])[1] ?? null;
if ($version === null) {
throw new \RuntimeException('HTTP version missing from header data');
}
$status = $parts[1] ?? null;
if ($status === null) {
throw new \RuntimeException('HTTP status code missing from header data');
}
return [$version, (int) $status, $parts[2] ?? null, Utils::headersFromLines($headers)];
}
}