Question

我有这个查询

SELECT json_object('image_name', image_name, 'iid', iid) FROM `posts_images` WHERE `pid` = '62'

导致此

Image

我可以将这些结果转换为同一查询中的一行json数组吗？

Answer 1

您可以执行以下操作：

$query = "SELECT json_object('image_name', image_name, 'iid', iid) FROM `posts_images` WHERE `pid` = '62'";
$result = mysqli_query($query);
$data = array();
while($row = mysqli_fetch_assoc($result)) {
    $data[] = $row;
}
print json_encode($data);

Answer 2

var o = {"0":"1","1":"2","2":"3","3":"4"};

var arr = $.map(o, function(el) { return el; })

console.log(arr)

试试这个

Answer 3

我想通了

SELECT CONCAT(
    '[',  
            GROUP_CONCAT(json_object('image_name', image_name, 'iid', iid)),
    ']'
) 
FROM posts_images WHERE pid = '62'

[{＆＃34; iid＆＃34;：99，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101812.jpg＆＃34;}，{＆＃34; iid＆＃34;：98，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101708.jpg＆＃34;}，{＆＃34; iid＆＃34;：97，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101651.jpg＆＃34;}，{＆＃34; iid＆＃34;：96，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101574.jpg＆＃34;}，{＆＃34; iid＆＃34;：95，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101472.jpg＆＃34;}，{＆＃34; iid＆＃34;：100，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101886.jpg＆＃34;}，{＆＃34; iid＆＃34;：101，＆＃34; image_name＆＃34;：＆＃34; 6_1499203101960.jpg＆＃34;}，{＆＃34; iid＆＃34;：102，＆＃34; image_name＆＃34;：＆＃34; 6_1499203102020.jpg＆＃34;}]

mysql将json_objects转换为数组

3 个答案: