online checker

if($exec2 = $mysqli->query("SELECT id,username,last_move FROM users")) {
	while($rij = $exec2->fetch_assoc()) {
		$id = $rij['id'];
		$username = $rij['username'];
		$lastmove = $user['last_move'];
					
		if (strtotime($lastmove) <= strtotime('-3000 seconds')) {
			$onof = 1;
		} else {
			$onof = 0;
		}
					
		if ($onof == 1){
			echo ' <a id="wie" href="/profiel/'.$id.'">'.$username.'</a> ';
		}
	}
}

<?php
			if($exec4 = $mysqli->query("SELECT * FROM `users` WHERE `last_move` BETWEEN DATE_SUB(NOW(), INTERVAL 5 MINUTE) AND NOW()")) {
				while($rij4 = $exec4->fetch_assoc()) {
					$idwho = $rij4['id'];
					$usernamewho = $rij4['username'];
					$lastmovewho = $rij4['last_move'];
					echo ' <a id="wie" href="/profiel/'.$idwho.'">'.$usernamewho.'</a> ';
				}
			} else {
			
			}
		?>