README

This library is a very simple collection of a few classes to facilitate handling HTTP requests.

Installation

Available as composer package femastudios/http-utils. PHP 7.3 or greater required.

Contents & Usage

Core

Very base classes. Enumerators are declared using the femastudios/enums library.

HttpRequestMethod: enumerator that defines the common request methods (GET, POST, etc.). They also have some properties (e.g. is cachable)
HttpResponseCode: enumerator that defines the common response codes (SUCCESS, NOT_FOUND, FORBIDDEN, etc.). They have the numerical code and the standard message.
HttpResponseCodeType: enumerator that defines the type of a response code (i.e. INFORMATIONAL, SUCCESSFUL, REDIRECTION, CLIENT_ERROR and SERVER_ERROR)
HttpException: exception class that wraps an HttpResponseCode enum, useful to bubble up an HTTP response code that need to be handled at a higher level.

Header utils

These utilities allow to better handle request and response HTTP headers.

RequestHeaderUtils: contains functions to read the headers sent by the requester (even in a context that does not define getallheaders(), like FPM).
ResponseHeaderUtils: contains functions to add and read headers to be sent, also with support of comma-separated values (that can be added in different calls).

Example usage:

RequestHeaderUtils::get('Content-Type', 'none'); // Get the header, or default value

ResponseHeaderUtils::put('Content-Type', 'application/json'); // Put the header or throws if they have already been sent
ResponseHeaderUtils::addCsv('Vary', 'Origin'); // Treats the header value as a comma-separated value and adds "Origin"

Uploaded files utils

Here we have utilities that help handling file uploads. The main reason for this utility is:

Handle the errors with an exception;
Untangle the mess that is the $_FILES array when the param name is nested (e.g. user[info][avatar]). For more on this see the doc of UploadedFilesUtils::getReorderedFiles().

The classes are:

UploadedFile: class that contains the info on a single uploaded file (e.g. name, size, etc.)
UploadedFileException: exception thrown when an error uploading a file is detected. It cotains the error code and a description of the error as message.
UploadedFilesUtils: contains static functions to retrieve the uploaded files