Request class

Class to work with HTTP requests.

The class have following functions:

• getUrl(): URL - Returns URL object.
• getQuery(string $key = null) - Returns variable provided to the script via URL query ($_GET). If no key is passed, returns the entire array. If key does not exists, returns null.
• getPost(string $key = null) - Returns variable provided to the script via POST method ($_POST). If no key is passed, returns the entire array.
• getMethod(): string - Returns HTTP request method (GET, POST, HEAD, PUT, ...).
• isMethod(string $method): bool - Checks if the request method is the given one.
• getHeader(string $header): ?string - Return the value of the HTTP header. Pass the header name as the plain, HTTP-specified header name (e.g. 'Accept-Encoding').
• getHeaders(): array - Returns all HTTP headers.
• getReferer(): ?string - Returns referrer.
• isSecured(): bool - Is the request over HTTPS?
• isAjax(): bool - Is AJAX request?
• getRemoteAddress(): ?string - Returns the IP address of the remote client.
• detectLanguage(array $langs): ?string - Parse Accept-Language header and returns preferred language.
• getMostPreferredLanguage(): ?string - Return most preferred language.
• getClientID() - Returns string representaining the client unique ID.
• workWith(string $method, array $vars): bool - Checks if are all of $vars isset(). The $method is GET ($_GET) or POST ($_POST)