[1] : select tid from user_post where pid='624031' limit 1 

Array
(
    [tid] => 624032
)
Array
(
    [0] => http://play.nownews.com/wp-content/uploads/2019/03/1552897030-63910bb3d7d980decbf34629e3d1f7a8.jpeg
    [1] => https://www.nownews.com/wp-content/uploads/2019/03/1552896670-8939653975427701f2fa3674df3bd160-1024x576.jpeg
)
[2] : stage2
[3] : stage3
[4] : http://play.nownews.com/wp-content/uploads/2019/03/1552897030-63910bb3d7d980decbf34629e3d1f7a8.jpeg
Return
(1 : 2)
[5] : https://www.nownews.com/wp-content/uploads/2019/03/1552896670-8939653975427701f2fa3674df3bd160-1024x576.jpeg
(2 : 2)
ReturnStart Cap