Online PHP editor | output for bTCRW

<?php enum TaskType { case DISTANCE; case TIME; case WORKLOAD; public function visit(TaskProgressCalculator $calculator) { match($this) { TaskType::DISTANCE => $calculator->calculateForDistance(), TaskType::TIME => $calculator->calculateForTime(), TaskType::WORKLOAD => $calculator->calculateForWorkload(), }; } } class TaskProgressCalculator { public function calculateProgressFor(TaskType $task): void { $task->visit($this); } public function calculateForDistance(): void { echo "Calculating distance progress\n"; } public function calculateForTime(): void { echo "Calculating time progress\n"; } public function calculateForWorkload(): void { echo "Calculating workload progress\n"; } } $calculator = new TaskProgressCalculator; $calculator->calculateProgressFor(TaskType::WORKLOAD); $calculator->calculateProgressFor(TaskType::TIME); $calculator->calculateProgressFor(TaskType::DISTANCE);