Write a Bulletproof accounting script

• Status: Closed
• Prize: R1097
• Entries Received: 1
• Winner: webbiesphp

Winner

Contest Brief

Hello

Scenario


tblusers
_______________________________
username pk
outstanding_amount

tbltransaction
______________________________

username
reciever
amount
status

HTML Table
user ID ,amount btnDonate

btnDonate
This button must send you to another page where you see the outstanding amount
Your donations amount.

donate button

KEY ISSUE
This button must than allow the system to RECHECK THE OUTSTANDING , SUBTRACT FROM USERS TABLE AND ADD NEW RECORD TO tbltransction.

THERE MUST NOT BE ANY OVER DONATION.
The script/website will be accessed by 1900 every second.
Make sure no one gets more than the outstanding amount
-Recommend vps server spec
- Sugget a better database model to make sure that 1900 +- mysql request are fulfilled without error
-Test and submit contest
- Please start immediate, Be available with the next 8 hrs for live chat interaction.

Current system is attached. Don't worry about the other operations but This Critical one

Recommended Skills

• Data Science
• HTML5
• Mathematics
• PHP