我有一个20行的表,例如:
2,3,5,6,8,22
2,3,5,6,8,22,44,55
etc.
如何从mysql表行中仅选择唯一的数字,而不是重复的,因此结果如下:
2,3,5,6,8,22,44,55
表定义:
CREATE TABLE IF NOT EXISTS `test` (
`id` int(11) NOT NULL auto_increment,
`active` tinyint(1) NOT NULL default '1',
`facilities` varchar(50) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ;
INSERT INTO `test` (`id`, `active`, `facilities`) VALUES
(1, 1, '1,3,5,6,7,8'),
(2, 1, '2,3,4,5,8,9'),
(3, 1, '4,5,6,7,9,10');
这是我的尝试:
SELECT DISTINCT facilities FROM test WHERE active='1'
$dbgeneral= explode(',', $row['facilities']);
$facilities = array(
"Air Conditioning" => "2",
"Balcony" => "4");
foreach ($facilities as $facilities=> $v) …