PHP

PHP (recursive acronym for "PHP: Hypertext Preprocessor") is a widely-used Open Source general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

Perl

Perl is an interpreted programming language known for its power and flexibility. It combines the familiar syntax of C, C++, sed, awk, grep, sh, and csh into a tool that that is more powerful than the separate pieces used together.