Introduction

This chapter describes the functions that allow you to work with Uniform Resource Identifiers (URIs). A URI is a string of characters used to identify a resource. URIs are used in web technologies to identify resources on the Internet.

URI implements RFC 3986, Uniform Resource Identifier (URI): Generic Syntax, which can be found at » http://www.ietf.org/rfc/rfc3986.txt. And WHATWG URL Standard, which can be found at » https://url.spec.whatwg.org/.