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. Just drop this line in where you’d like to have a breakpoint: eval(\Psy\sh());
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.
Have a question about a core PHP function? Try doc array_map. Want to read the documentation for an object property? Run doc $response->statusTexts.
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.
No worries, PsySH has your back. We caught it for you, and made it available via the wtf command.
Show, search, save and replay your shell history.
and much more :)

Integrations