SAPRFC is the extension module for PHP that allows you to call ABAP functions in an SAP R/3 system from PHP scripts. It is also possible to write an RFC server program in PHP, and call PHP functions from ABAP. Other features include using the RFC (Remote Function Call) API to make a call, discovering the interface of a function module, and mapping all RFC types to PHP strings (delivered with a test script that has a similar function to the "Single Test" option in the SE37 transaction).
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.
Boxx News Pro is a PHP/MySQL-based application that allows you to update the news on your Web site from anywhere in the world. It has a secure login and can support multiple admins with a variety of access levels. It allows you to change all settings online and is very easy to install.
PHP-Authentication works like the Tomcat authentication. You give the source to authenticate against (DB, file, XML-RPC, etc.) and the directories that shall be protected, and the class handles the rest. No including of any call to a class method on every page is necessary. You can also use it as if it were a standard Auth-class, using a call to "isLoggedIn" on every page that shall be protected.
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.