What are the best practices for creating abstract methods in PHP classes for database interactions?

When creating abstract methods in PHP classes for database interactions, it is important to define a set of common methods that all child classes must implement. This ensures consistency and allows for easy swapping of different database implementations. Some best practices include defining abstract methods for CRUD operations (Create, Read, Update, Delete), error handling, and connection management. 

abstract class Database {
    protected $connection;

    // Abstract method for establishing a database connection
    abstract protected function connect();

    // Abstract method for executing a query
    abstract public function query($sql);

    // Abstract method for fetching a single row
    abstract public function fetch($result);

    // Abstract method for inserting data
    abstract public function insert($table, $data);

    // Abstract method for updating data
    abstract public function update($table, $data, $where);

    // Abstract method for deleting data
    abstract public function delete($table, $where);

    // Abstract method for handling errors
    abstract protected function handleError($error);
}

Keywords

abstract methods PHP classes database interactions OOP inheritance

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