[1] : select tid from user_post where pid='599797' limit 1 

Array
(
    [tid] => 599798
)
Array
(
    [0] => https://www.nownews.com/wp-content/uploads/2019/01/1546964856-cf62efff9982345c56a026b3a7a8d700.png
)
[2] : stage2
[3] : stage3
[4] : https://www.nownews.com/wp-content/uploads/2019/01/1546964856-cf62efff9982345c56a026b3a7a8d700.png
Return
(1 : 1)
ReturnStart Cap