Solar连接Oracle存在的问题！

前段时间朋友@东疯 使用Solar连接Oracle，死活都连不上，搞了好久天，所以我也找时间研究了下。看这里：http://wiki.oracle.com/page/PHP+Oracle+FAQ。使用PDO连接Oracle：

try {
$dbh = new PDO('oci:dbname=myhost/XE', 'myusername', 'mypassword');
} 
catch (PDOException $e) {
trigger_error("Could not connect to database: ". $e->getMessage(), E_USER_ERROR);
}

有三种合法字符串：

1. 简易连接

$c = oci_connect('myusername', 'mypassword', 'mymachine.mydomain/MYDB');
$d = new PDO('oci:dbname=myhost/XE', 'myusername', 'mypassword');
//或
$c = oci_connect('myusername', 'mypassword', '127.0.0.1/XE');
$d = new PDO('oci:dbname=127.0.0.1/XE', 'myusername', 'mypassword');

1. 一个用户选择的网络服务名通常用来识别的数据库连接。

$c = oci_connect('myusername', 'mypassword', 'MYDB');
$d = new PDO('oci:dbname=MYDB', 'myusername', 'mypassword');

tnsnames.ora文件内容

MYDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mymachine.mydomain)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = MYDB)
)
)

1. 如果简单连接方法被禁用了，你使用的又是Oracle 8i或9i库，你可以这样做。

$db = "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)
(HOST = mymachine.mydomain)(PORT=1521))
(CONNECT_DATA=(SERVER=DEDICATED)
(SERVICE_NAME=MYDB)))";

$c = oci_connect('myusername', 'mypassword', $db);
$d = new PDO("oci:dbname=$db", 'myusername', 'mypassword');

看到了吧？这和PHP的PDO连接方式很不一样，所以Solar的Sql\_Oracle\_Adapter类的\_buildDsn应该修改一下：

$info = array(
    'host' => '192.168.1.118',
    'port' => '1521',
    'name' => 'pzblog',     // the service id
    'user' => 'root',       // authenticate as this user
    'pass' => '123456',     // authenticate with this password

);
class Solar_Sql_Adapter_Oracle
{
    protected $_pdo_type = 'oci';

    protected function _buildDsn($info)
    {
        $dsn = array();

        if (! empty($info['host'])) {
            $dsn[] = 'dbname=//' . $info['host'];
        }

        if (! empty($info['port'])) {
            $dsn[] = ':' . $info['port'];
        }

        if (! empty($info['name'])) {
            $dsn[] = '/' . $info['name'];
        }

        return $this->_pdo_type . ':' . implode('', $dsn);
    }
}