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Module_Storage::instance

返回数据库实例化对象

Database Module_Storage::instance( [ string $config_name = null ] )

参数列表

参数类型描述默认值

$config_name string 默认值为 Database::DEFAULT_CONFIG_NAME null

参数	类型	描述	默认值
`$config_name`	`string`	默认值为 Database::DEFAULT_CONFIG_NAME	null

返回值

Database

File: ./modules/storage/storage.class.php

public static function instance($config_name = null)
{
    if (null===$config_name)
    {
        $config_name = Storage::DEFAULT_CONFIG_NAME;
    }

    if (is_string($config_name))
    {
        $i_name = $config_name;
    }
    else
    {
        $i_name = '.config_' . md5(serialize($config_name));
    }

    if (!isset(Storage::$instances[$i_name]))
    {
        Storage::$instances[$i_name] = new Storage($config_name);
    }

    return Storage::$instances[$i_name];
}