View difference between Paste ID: CC2LKS6a and RzAwSW2W

 <?php
 
 /* Array having the days as keys (YYYY-mm-dd) and the view count as values */
 $days = array();
 
 /* Initialize the days keys to 0, for both ads and phone */
 for ($i = 0; $i < 7; $i++)
 {
 	$dayUts = mktime(0, 0, 0, date('n'), date('j') - $i, date('Y'));
 	$day = date('Y-m-d', $dayUts);
 	$days[$day] = array('ads' => 0, 'phone' => 0);
 }
 
 /* Now read the view count from the DB */
-$query = 'SELECT DATE_FORMAT(view_count_date, "%Y-%m-%d") AS time, count(*) AS view_count_ads, -1 AS view_count_phone FROM ads_view_count WHERE view_count_date >= (NOW() - INTERVAL 7 DAY) AND view_count_user_id = :id UNION SELECT DATE_FORMAT(view_count_date, "%Y-%m-%d") AS time, -1 AS view_count_ads, count(*) AS view_count_phone FROM phone_view_count WHERE view_count_date >= (NOW() - INTERVAL 7 DAY) AND view_count_user_id = :id';
+$query = 'SELECT DATE_FORMAT(view_count_date, "%Y-%m-%d") AS time, count(*) AS view_count_ads, -1 AS view_count_phone FROM ads_view_count WHERE view_count_date >= (NOW() - INTERVAL 7 DAY) AND view_count_user_id = :id GROUP BY DATE_FORMAT(view_count_date, "%Y-%m-%d") UNION SELECT DATE_FORMAT(view_count_date, "%Y-%m-%d") AS time, -1 AS view_count_ads, count(*) AS view_count_phone FROM phone_view_count WHERE view_count_date >= (NOW() - INTERVAL 7 DAY) AND view_count_user_id = :id GROUP BY DATE_FORMAT(view_count_date, "%Y-%m-%d")';
 
 /* Note: be sure to validate $_SESSION['id'] */
 $res = $pdo->prepare($query);
 $res->bindValue(':id', $_SESSION['id'], PDO::PARAM_INT);
 $res->execute();
 
 /* Now we update the $days array with the view count from the query */
 while ($row = $res->fetch(PDO::FETCH_ASSOC))
 {
 	if (array_key_exists($row['time'], $days))
     {
 		$ads_count = intval($row['view_count_ads'], 10);
 		$phone_count = intval($row['view_count_phone'], 10);
 
 		/* If view_count_ads is -1 it means this is a result from phone_vew_count */
 		if (ads_count  == -1)
 		{
 			$days[$row['time']]['phone'] = $phone_count;
     	}
 		else /* Otherwise, it's a result from ads_vew_count */
 		{
 			$days[$row['time']]['ads'] = $ads_count;
     	}
 	}
 }