Traverse array in batch YII Framework

gistfile1.txt

<?php
	/**
	 * Prototype method for traversing large records in batches
	 * using the YII framework.
	 * 
	 * Completed stepper method for restoration rollback solution.
	 *
	 * @todo  Include this in main restoartion rollback solution
	 * @return [type] [description]
	 */
	public function actionInspect()
	{
		$offset = Controller::getGlobal ("offsetTitle");
		$batchSize = 50;

		if (empty($offset) || $offset == "finished")
		{
			// Value has not been set or doesn't exist
			Controller::setGlobal("offsetTitle", 0);
			$offset = Controller::getGlobal ("offsetTitle");
		}
		
		$targetRestorationUsers = Yii::app()->params['users'];
		$users = array_slice($targetRestorationUsers, $offset, $batchSize);
		if (empty($users))
		{
			Controller::setGlobal("offsetTitle", "finished");
			echo "Finished";
			yii::app()->end();
		}

		echo "Traversing from {$offset} to {$batchSize}" . "<br/>";
		foreach ($users as $user)
		{
			echo $user["first_name"] . "<br/>";
		}
		$offset += $batchSize;
		Controller::setGlobal("offsetTitle", $offset);
	}

?>