PDObeginTransaction

PDObeginTransaction is a method of the PHP Data Objects (PDO) extension. It is used to start a database transaction. A transaction is a sequence of operations performed as a single logical unit of work. This means that all operations within the transaction must either succeed or fail together. If any operation fails, the entire transaction is rolled back, and the database is returned to its state before the transaction began.

To use PDObeginTransaction, you first establish a PDO connection to your database. Then, you call the beginTransaction() method on the PDO object. For example, if your PDO object is named $pdo, you would write $pdo->beginTransaction();. After starting the transaction, you can execute your SQL queries. If all queries execute successfully, you can commit the transaction using the commit() method, $pdo->commit();. If an error occurs during any of the operations, you can cancel the entire transaction by calling the rollback() method, $pdo->rollback();. This ensures data integrity by preventing partial updates to your database. It is important to handle exceptions appropriately when working with transactions to ensure that rollback is called when necessary.