public static function run($dataDir = null) { # Instantiate project object $project = new Project(); print $project->getCalculationMode(); $task = $project->getRootTask()->getChildren()->add("Task"); $tsk = new Tsk(); $task->set($tsk->DURATION, $project->getDuration(2)); $task->set($tsk->PERCENT_COMPLETE, 50); print "Changed progress of task." . PHP_EOL; }