hai Iam having a login page with the help of username and password i want to enter into the login page in my login page there is certain orders i want to click that orders and i want to rename it, this is my job when i enter into my login page i SET THE LOCK BY 1, so when i logout the LOCK WILL BE ZERO After entering into my login page iam not renaming the orders, without doing that iam doing some other things in the same page or iam just leaving outside and i come after 2 minutes and if I click the same order which is to be renamed means It will not go to rename page, instead it want to show an message that " YOU ARE NOT ABLE TO RENAME THE ORDERS NOW" at the same time in the database the LOCK IS ALSO WANT TO SET TO ZERO this is the message i want now and also the LOCK IS ALSO WANT TO SET TO ZERO AUTOMATICALLY IN THE DATABASE when i click the orders without doing anything for 2 minuters and after that i click means SO I NEED A PHP CODE FOR THIS SITUATION