PsySH

A runtime developer console, interactive debugger and REPL for PHP. PsySH can be used as an interactive debugger, much like JavaScript's debugger statement, saving you from endless var_dump() and die() iterations. PsySH has tab completion for variable names, functions, classes, methods, properties, and even files! Just start typing, then hit [tab]. But you probably already guessed that. Most PHP shells are terrible at namespaces. PsySH does just what you'd expect. The list command knows all about your code, and everyone else's. Easily list and search all variables, constants, classes, interfaces, traits, functions, methods and properties. Easily show the source code for any userland object, class, interface, trait, constant, method or property. Show, search, save and replay your shell history.