Maguma Studio is the source-level IDE, equipped with all the features known from other languages' development environments.Through tight integration of the PHP interpreter and the PHP documentation, Maguma Studio gives developers a time-saving development tool. Features full integration of the PHP interpreter and the PHP documentation (through "function insight" and F1-key popup manual pages), integrated preview window, full syntax highlighting for HTML and PHP, Auto Complete for frequently used text constructs, tag buttons and all the standard editing functions like almost unlimited undo, copy and paste, searching, etc. Studio is smaller and faster loading than other PHP IDEs.

Platform: Windows; License: Freeware

Reference: https://www.maguma.com/maguma-studio.html