[1] : select tid from user_post where pid='624336' limit 1 

Array
(
    [tid] => 624337
)
Array
(
    [0] => http://orange01.online/wp-content/uploads/2019/03/50230-df2af5d503434378879d06f32886bfeb.jpg
    [1] => http://orange01.online/wp-content/uploads/2019/03/1552892849-4354-026780670D2Cw353h238.jpg
    [2] => http://orange01.online/wp-content/uploads/2019/03/1552892848-1901-F48FF9AD6803w597h405.jpg
    [3] => http://orange01.online/wp-content/uploads/2019/03/1552892849-7610-106267474E34w264h238.jpg
)
[2] : stage2
[3] : stage3
[4] : http://orange01.online/wp-content/uploads/2019/03/50230-df2af5d503434378879d06f32886bfeb.jpg
Return
(1 : 4)
[5] : http://orange01.online/wp-content/uploads/2019/03/1552892849-4354-026780670D2Cw353h238.jpg
(2 : 4)
[6] : http://orange01.online/wp-content/uploads/2019/03/1552892848-1901-F48FF9AD6803w597h405.jpg
(3 : 4)
[7] : http://orange01.online/wp-content/uploads/2019/03/1552892849-7610-106267474E34w264h238.jpg
(4 : 4)
ReturnStart Cap