APD is currently available as a PECL extension from » http://pecl.php.net/package/apd.
Run the following command to download, build, and install the latest stable version of APD:
pear install apd
This automatically installs the APD Zend module into your PHP extensions directory. It is not mandatory to keep it there; you can store the module in any directory PHP can read as long as you set the zend_extension parameter accordingly.
Windows users will enable php_apd.dll inside of php.ini in order to use these functions. A DLL for this PECL extension is currently unavailable. See also the building on Windows section.
In your INI file, add the following lines:
zend_extension = /absolute/path/to/apd.so apd.dumpdir = /absolute/path/to/trace/directory apd.statement_tracing = 0
Depending on your PHP build, the zend_extension directive can be one of the following:
zend_extension (non ZTS, non debug build) zend_extension_ts ( ZTS, non debug build) zend_extension_debug (non ZTS, debug build) zend_extension_debug_ts ( ZTS, debug build)