I am creating a booking website with PHP in which 1 slot available only for 1 person other person not allow to book same slot time I have already done it.
but i need disable selected slot drop down value for 5 minute to all user on front end eg if one user select 1 drop down on front end that time it should disable for 5 minute for all user if other user come to website then slot dropdown value get disable for them until a that user not completed their ahead process.
can anyone help me with that how can I do that