westdc-core/Westdc/Db/Pdo.php

<?php
namespace Westdc\Db;

use Zend\Config\Config as Zend_Config;

class Pdo extends \PDO
{
	private $debug = 0;		//调试模式
	
	private $config_local_path = "config/autoload/local.php";
	
	function __construct($DSN = NULL)
    {
        if (!empty($DSN)) {
            parent::__construct($DSN);
        } else {
            $config_local = new Zend_Config(include $this->config_local_path);

            $dsn = "pgsql:host={$config_local->db->hostname};"
                . "port={$config_local->db->port};"
                . "dbname={$config_local->db->database};"
                . "user={$config_local->db->username};"
                . "password={$config_local->db->password}";
            parent::__construct($dsn);
        }
    }

}