[1] : select tid from user_post where pid='637281' limit 1 

Array
(
    [tid] => 637282
)
Array
(
    [0] => http://play.nownews.com/wp-content/uploads/2019/05/1558002371-8c65044958a62e5d67b38ad031dd9177.png
    [1] => https://www.nownews.com/wp-content/uploads/2019/05/1558002891-f3dfec1becf60f26f86f17afbe6264cd.jpg
    [2] => https://www.nownews.com/wp-content/uploads/2019/05/1558002675-0780f10e1779322970443ec269bdfd9f.jpg
    [3] => https://www.nownews.com/wp-content/uploads/2019/05/1558003028-5df24e5d2b233b597126f31ccf781d7a.jpg
)
[2] : stage2
[3] : stage3
[4] : http://play.nownews.com/wp-content/uploads/2019/05/1558002371-8c65044958a62e5d67b38ad031dd9177.png
Return
(1 : 4)
[5] : https://www.nownews.com/wp-content/uploads/2019/05/1558002891-f3dfec1becf60f26f86f17afbe6264cd.jpg
(2 : 4)
[6] : https://www.nownews.com/wp-content/uploads/2019/05/1558002675-0780f10e1779322970443ec269bdfd9f.jpg
(3 : 4)
[7] : https://www.nownews.com/wp-content/uploads/2019/05/1558003028-5df24e5d2b233b597126f31ccf781d7a.jpg
(4 : 4)
ReturnStart Cap