时间:2021-07-01 10:21:17 帮助过:14人阅读
CREATE TABLE `score_collect` (
`std_id` int(10) NOT NULL,
`course_id` int(11) NOT NULL,
`score` varchar(255) DEFAULT NULL,
PRIMARY KEY (`std_id`,`course_id`),
)
INSERT INTO `score_collect` VALUES ('2012508082', '2', '20');
INSERT INTO `score_collect` VALUES ('2012508082', '3', '10');
INSERT INTO `score_collect` VALUES ('2012508082', '4', '30');
INSERT INTO `score_collect` VALUES ('2012508084', '2', '21');
INSERT INTO `score_collect` VALUES ('2012508084', '3', '11');
INSERT INTO `score_collect` VALUES ('2012508084', '4', '31');
SELECT std_id,GROUP_CONCAT(course_id) AS course_id,GROUP_CONCAT(score) AS score FROM `score_collect` GROUP BY std_id;
//$list=array(array('std_id'=>'2012508082','course_id'=>'2,3,4','score'=>'20,10,30'),array('std_id'=>'2012508084','course_id'=>'2,3,4','score'=>'21,11,31'),);
foreach($list as $key=>$val)
{
$course_id_arr=explode(',',$val['course_id']);
$score_arr=explode(',',$val['score']);
unset($list[$key]['course_id']);
unset($list[$key]['score']);
foreach($course_id_arr as $key1=>$val1)
{
$list[$key][$val1]=$score_arr[$key1];
}
}
print_r($list);