Imagine you're building a registration system and need to ensure that two users don't register at the exact same time with the same username. Which feature of PDO would be useful to handle this situation?
- Transactions
- Prepared Statements
- Error Handling
- Data Fetching
Using transactions with PDO allows you to perform a series of operations as a single unit. In this scenario, you can ensure that user registration and username checks are atomic.
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