與左連接和顯示結果在html表中的Mysql查詢

Question

作爲示例，我有兩個mysql表「films」和「showtime」，查詢'$ place_id = 2'和'$ date = 2013-11-22'的變量。 showtime表有colomns'id'，'film_id'，'place_id'，'hall_id'，'time'，'date';

films table have colomns'id'，'title';

我寫的查詢與左連接，因爲一個查詢比一些更好，因爲我認爲：

SELECT `showtime`.`id`, `showtime`.`film_id`, `showtime`.`place_id`, 
`showtime`.`hall_id`, `showtime`.`time`, `showtime`.`date`, `films`.`id`, 
`films`.`title` FROM (`showtime`) 
LEFT JOIN `films` ON `films`.`id` = `showtime`.`film_id` 
WHERE `showtime`.`date` = '2013-11-22' AND `showtime`.`place_id` = '2' 
ORDER BY `films`.`title` asc, `showtime`.`time` asc 

因爲此查詢我得到這個結果：

print_r($result): 

Array (
[0] => stdClass Object (
[id] => 4 [film_id] => 4 [place_id] => 2 [hall_id] => 2 [time] => 09:00:00 
[date] => 2013-11-22 [title] => Hunger Games 2) 
[1] => stdClass Object ([id] => 4 [film_id] => 4 [place_id] => 2 [hall_id] => 2 
[time] => 22:30:00 [date] => 2013-11-22 [title] => Hunger Games 2) 
[2] => stdClass Object ([id] => 1 [film_id] => 1 [place_id] => 2 [hall_id] => 2 
[time] => 09:00:00 [date] => 2013-11-22 [title] => Thor 2) 
[3] => stdClass Object ([id] => 1 [film_id] => 1 [place_id] => 2 [hall_id] => 2 
[time] => 11:00:00 [date] => 2013-11-22 [title] => Thor 2)) 

隨着使用缺省foreach我有這樣的表：

Title   | Time 
__________________________________ 
Hunger games 2 | 09:00:00 
__________________________________ 
Hunger games 2 | 22:30:00 
__________________________________ 
Thor 2   | 09:00:00 
__________________________________ 
Thor 2   | 11:00:00 

我如何可以在php中按標題分組結果以獲得html表像這樣：

Title   | Time 
__________________________________ 
Hunger games 2 | 09:00:00 22:30:00 
__________________________________ 
Thor 2   | 09:00:00 11:00:00 

有什麼建議嗎？可能是我選擇錯誤的方式與查詢？解析複雜連接查詢的結果有什麼更好的方法？謝謝！

Answer 1

假設查詢只用於生產可以使用GROUP BY和GROUP_CONCAT表：

SELECT `films`.`title` 
GROUP_CONCAT(`showtime`.`time`) AS filmtime 
FROM (`showtime`) 
LEFT JOIN `films` ON `films`.`id` = `showtime`.`film_id` 
WHERE `showtime`.`date` = '2013-11-22' AND `showtime`.`place_id` = '2' 
GROUP BY films.id 
ORDER BY `films`.`title` asc, `showtime`.`time` asc 

會產生類似於你的第二個表的結果。你可以在你當前的循環中使用它。

Answer 2

嘗試使用MySQL的GROUP_CONCAT函數：

http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat