As you can see in this demo, a profiler has been included with the framework.When it is activated from the config file, it is used by several libraries to log their progress.Finally, a report is constructed after the application finishes.
Please note that AJAX actions can have the profiler activated separately (no profiling information is added to these AJAX calls)
Finally, have in mind that the Profiler, the _debug() function and PHP errors are configured to do not output anything when on production mode.Production mode is determined in fw.php according to the host name (currently, all hosts but localhost are production servers except).