final class Main {

	public function __construct() {
		$this->displayMem();
	}

	private function displayMem() {
		$bytes = memory_get_usage();
		$peak = memory_get_peak_usage();
		$limit = memory_limit();
		var_export($bytes > 0);
		var_export($peak > 0);
		var_export($peak >= $bytes);
		var_export($limit == 0 || $limit > $bytes);
	}

}

final class Program {
	public function main() {
		new Main();
	}
}