how to get uid_set by userid module in php

[lostsnow]

By the way, 

how can i decode the cookie from the client

for example:

wKiAg0uMcKcZqg3nAwMDAg==

decode to 

8380A8C0A7708C4BE70DAA1902030303


Posted at Nginx Forum: http://forum.nginx.org/read.php?2,58522,58867#msg-58867