PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Lightweight open-source web server, Security, speed, compliance, and flexibility -- all of these describe lighttpd (pron. lighty) which is rapidly redefining efficiency of a webserver
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.