README

This library provides mechanisms to connect to a database and perform queries easily and conveniently, leveraging all the advantages of the PHP PDO extension. It currently supports connections with MySQL, Postgres, and SQLite databases.

It was designed to be used in simple PHP projects but can also serve as the database layer for a more complex web application.

How to start

Install it in your PHP project using composer:

composer require abrahanzarza/dbm

With that you are ready to connect with your database.

MySQL database connection

$dbm = Dbm::build(
    ConnectionType $type,  //ConnectionType::MYSQL
    string $host,
    int $port,
    string $user,
    string $password,
    string $database,
    string $charset = 'utf8mb4',
);

Example:

$dbm = Dbm::build(ConnectionType::MYSQL, 'localhost', 3306, 'db_user', 'db_pass', 'database', 'latin1');

PostgreSQL database connection

$dbm = Dbm::build(
    ConnectionType $type,  //ConnectionType::PGSQL
    string $host,
    int $port,
    string $user,
    string $password,
    string $database,
);

Example:

$dbm = Dbm::build(ConnectionType::PGSQL, 'localhost', 3306, 'db_user', 'db_pass', 'database');

SQLite database connection

$dbm = Dbm::buildForSqlite(
    string $dbFilePath,  //The database file location
);

Example:

$dbm = Dbm::buildForSqlite(__DIR__ . '/database.sqlite');

How to use

Once you have been connected successfully following the previous steps, you can work with your database.

The read method

This method must be used for all read operations with your database, for example:

$result = $dbm->read('SELECT * FROM users');

The $result variable contains an array with all records of the users table.

Available parameters

The write method

This method must be used for all write operations with your database, for example:

• Insert one user:

$dbm->write(
    'INSERT INTO users (id, name) VALUES (:id, :name)',
    [':id' => 2, ':name' => 'Jane']
);

• Update the user:

$dbm->write(
    'UPDATE users SET name = :name WHERE id = :id',
    [':name' => 'Lorem', ':id' => 2]
);

• Delete the user:

$dbm->write('DELETE FROM users WHERE id = :id', [':id' => 2]);

• Also, drop the users table:

$dbm->write('DROP TABLE users');

Available parameters

Authors

• Abrahan Zarza. The project creator and maintainer.