Connecting to a database

Connecting to a database engine requires additional composer libraries to be installed for the database engine you want to connect to. Below is a list of database engines that are supported.

List of database composer libraries

Database	Composer Command
Sqlite3	composer require tina4stack/tina4php-sqlite3
ODBC	composer require tina4stack/tina4php-odbc
MySQL	composer require tina4stack/tina4php-mysql
Firebird	composer require tina4stack/tina4php-firebird
MongoDB	composer require tina4stack/tina4php-mongodb
PostgreSQL	composer require tina4stack/tina4php-postgresql
MSSQL	composer require tina4stack/tina4php-mssql
PDO	composer require tina4stack/tina4php-pdo

Creating a database connection string

A connection string is composed of the following sections:

<host>/<port>:<schema/path-to-database>

We create a global $DBA variable in index.php which can be used by the data aware classes.

require_once "./vendor/autoload.php";

global $DBA;
$DBA = new \Tina4\DataSQLite3("test.db", $username="", $password="");

$config = new \Tina4\Config(static function (\Tina4\Config $config){
    //Your own config initializations

});

echo new \Tina4\Tina4Php($config);

Alternatively the database connection can be instantiated in the config section in the index.php, This means the database connection will only be available to routes or REST end points.

<?php
require_once "./vendor/autoload.php";

$config = new \Tina4\Config(static function (\Tina4\Config $config){
    //Your own config initializations
    global $DBA;
    $DBA = new \Tina4\DataSQLite3("test.db", $username="", $password="");   
});

echo new \Tina4\Tina4Php($config);

Execute a statement

$DBA->exec("insert into user(first_name, last_name, email) values(?, ?, ?)", "User", "User", "user@user.com");

Query the database

$user = $DBA->fetchOne("select * from user");

print_r ($user->asArray());
print_r ($user->asObject());
print_r ($user->asResult());

$users = $DBA->fetch("select * from user");

print_r ($users->asArray());
print_r ($users->asObject());
print_r ($usesr->asResult());

Hot Tips

• Extend \Tina4\Data for a class that needs a database connection