Helper returning ezcDbHandler From eZPublish database settings

HelioINIZetaDBFactory.php

<?php
class HelioINIZetaDBFactory
{
    /**
     * Database implementations mapping
     * Key is eZPublish ImplementationAlias, Value is ezcDbFactory alias
     * @var array
     */
    private static $map = array(
        'mysql'         => 'mysql',
        'mysqli'	    => 'mysql',
    	'ezmysql'		=> 'mysql',
        'ezmysqli'		=> 'mysql',
        'postgresql'	=> 'pgsql',
        'ezpostgresql'	=> 'pgsql',
    );

    /**
     * Instanciates a new ezcDbHandler based on site.ini's Database Settings
     * @return ezcDbHandler
     */
    static function ezcDbHandler()
    {
        $ini = eZINI::instance();
        $eZImpl = $ini->variable( 'DatabaseSettings', 'DatabaseImplementation' );
        if( !isset( self::$map[$eZImpl] ) )
        {
            throw new Exception( 'DatabaseImplementation ' . $eZImpl . ' could not be mapped to any ezcDbHandler' );
        }

        $dbParams = array(
            'handler' => self::$map[$eZImpl],
            'user' => $ini->variable( 'DatabaseSettings', 'User' ),
            'pass' => $ini->variable( 'DatabaseSettings', 'Password' ),
            'dbname' => $ini->variable( 'DatabaseSettings', 'Database' ),
            'host' => $ini->variable( 'DatabaseSettings', 'Server' ),
        );

        if( $ini->variable( 'DatabaseSettings', 'Port' ) )
        {
        	$dbParams['port'] = $ini->variable( 'DatabaseSettings', 'Port' );
        }

        if( $ini->variable( 'DatabaseSettings', 'Charset' ) )
        {

            $dbParams['charset'] = $ini->variable( 'DatabaseSettings', 'Charset' );
        }

        if( ( $socket = $ini->variable( 'DatabaseSettings', 'Socket' ) ) && $socket != 'disabled' )
        {
            $dbParams['socket'] = $socket;
        }

        $db = ezcDbFactory::create( $dbParams );
        return $db;
    }
}