php-msrpc is a PHP binding for MSRPC, which is Microsoft's proprietary protocol for managing Windows servers and the like. It uses the libraries provided by the Samba-TNG project, which is required for use. php-msrpc will enable you to write Web-based administration tools for Windows (such as a user manager) with a Web server running under Linux.
APD is a general purpose non-interactive PHP profiler/debugger that produces formatted strace/truss type reports. APD supports full stack backtraces via calls similar to croak() in Perl's carp. APD is a Zend Extension and is designed to provide timing with the minimal performance impact. APD supports varying levels of debugging and can be turned on/off in individual scripts.
The Xdebug PHP extension aids script debugging by providing a lot of valuable information, including stack and function traces in error messages, memory allocation traces, and protection from infinite recursions. Xdebug also has a built-in debugging server which you can access with a debug client to debug your scripts remotely. Stepping, accessing data, and examining stacktraces are a few of the remote capabilities.