What are the best practices for maintaining data consistency between related tables in PHP?

Maintaining data consistency between related tables in PHP involves using transactions to ensure that all database operations are completed successfully or rolled back in case of failure. It is also important to use foreign key constraints to enforce referential integrity between tables. 

// Begin a transaction
$pdo->beginTransaction();

try {
    // Perform database operations to update related tables

    // Commit the transaction if all operations are successful
    $pdo->commit();
} catch (Exception $e) {
    // Rollback the transaction if any operation fails
    $pdo->rollBack();
    echo "Transaction failed: " . $e->getMessage();
}

Keywords

transaction foreign key database normalization referential integrity cascading updates

Related Questions