Description:

This HTTP extension aims to provide a convenient and powerful set of
functionality for one of PHPs major applications.

It eases handling of HTTP urls, dates, redirects, headers and
messages, provides means for negotiation of clients preferred language
and charset, as well as a convenient way to send any arbitrary data
with caching and resuming capabilities.

It provides powerful request functionality, if built with CURL
support. Parallel requests are available for PHP 5 and greater.

Currently implemented features include:
- Building absolute URIs
- RFC compliant HTTP redirects
- RFC compliant HTTP date handling
- Parsing of HTTP headers and messages
- Caching by "Last-Modified" and/or ETag (with 'on the fly' option for
ETag generation from buffered output)
- Sending data/files/streams with (multiple) ranges support
- Negotiating user preferred language/charset
- Convenient request functions to HEAD/GET/POST if libcurl is
available
- HTTP auth hooks (Basic)
- PHP5 classes: HttpUtil, HttpResponse, HttpRequest, HttpRequestPool,
HttpMessage

In PECL status of this extension is: stable.