When you submit data after the rollback, the COOKIE will be delayed by one step to find a solution.

When you submit data after the rollback, the COOKIE will be delayed by one step to find a solution. A. php

B. php

Select "yes" in a. php and click "next" to submit the data to B. php. "1" is displayed ".
At this time, click the previous step. The return result will be checked and removed, and then click next. "1" will still be displayed ".
Click the previous step, and then click next. "0" is displayed ".

What is the cause of this non-synchronization? Find a solution.

Reply to discussion (solution)

There is no value for the first submission. Can you display 1?
The cookie will be visible the next time it is loaded after setcookie.