Patoui\Router\Headers

Complexity

Total Complexity

7

Size/Duplication

Total Lines	52
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes

0

<?php
class Headers
{
    /** @var array */
    private array $headers;

This code did not parse for me. Apparently, there is an error somewhere around this line:

Syntax error, unexpected T_ARRAY, expecting T_FUNCTION or T_CONST

    public function __construct(array $headers = [])
    {
        $this->headers = $headers;
    }

    /**
     * Get headers from $_SERVER global.
     * @return array
     */
    public static function getHeadersArrayFromGlobals(): array
    {
        $headers = array_filter($_SERVER, [__CLASS__, 'isServerKeyAHeader'], ARRAY_FILTER_USE_KEY);
        $headers = array_map([__CLASS__, 'wrapValuesInArray'], $headers);
        $headerKeys = array_map('strval', array_keys($headers));
        $headerKeys = array_map([__CLASS__, 'stripKeyOfLeadingHttpPrefix'], $headerKeys);
        $headerKeys = array_map('strval', array_values($headerKeys));

        return array_combine($headerKeys, $headers);
    }

    /**
     * @param string $serverParameter
     * @return bool
     */
    private static function isServerKeyAHeader(string $serverParameter): bool
    {
        return stripos($serverParameter, 'HTTP_') === 0;
    }

    /**
     * @param mixed $header
     * @return array
     */
    private static function wrapValuesInArray($header): array
    {
        return is_array($header) ? $header : [$header];
    }

    /**
     * @param mixed $headerKey
     * @return string
     */
    private static function stripKeyOfLeadingHttpPrefix($headerKey): string
    {
        return is_string($headerKey) ? str_replace('HTTP_', '', $headerKey) : '';
    }
}