SynthMaker 

SynthMaker is a graphical programming environment for creating VST instruments and effects plug-ins. You can also use SynthMaker to learn about and experiment with digital signal processing so it's a great educational tool as well.
audio programming vst vsti midi fft filter synth dsp visual

AIOCP (All In One Control Panel) 

AIOCP is a Content Management System (CMS), a professional all-inclusive solution to completely manage a website or portal through a user friendly web-interface. AIOCP includes e-commerce, e-business and development framework.
aiocp all in one control panel content management system cms e-commerce e-business wysiwyg editor website site portal internet intranet framework

Maguma Workbench 

The Maguma Workbench is a cross-platform source-level editor also known as an IDE (Integrated Development Enviroment). Maguma Workbench is now available for Windows and Linux. Built-in features include: FTP, Debugging, local and remote previewing.
php ide debug xdebug