Question

我打算在他们的论坛上发帖，但他们现在似乎已经失望了。

$mydb  = Database::instance('mydb');
$query = DB::select()->from('codes')->where('name', '=', 'PHP');

1）我在使用我在database.php中定义的自定义数据库实例时看起来并不是这样。它始终使用默认值。我该怎么说？

我收到错误消息：

mysql_connect(): Access denied for user ''@'localhost' (using password: NO) ~ MODPATH\database\classes\kohana\database\mysql.php [ 56 ]

2）我有点困惑，因为基于他们的教程，执行（$ mydb）不应该是必要的...但我已经看到帖子暗示它是。它是哪一个？

配置文件：

<?php defined('SYSPATH') or die('No direct access allowed.');

return array
(
    'default' => array
    (
        'type'       => 'mysql',
        'connection' => array(
            /**
             * The following options are available for MySQL:
             *
             * string   hostname     server hostname, or socket
             * string   database     database name
             * string   username     database username
             * string   password     database password
             * boolean  persistent   use persistent connections?
             *
             * Ports and sockets may be appended to the hostname.
             */
            'hostname'   => 'localhost',
            'database'   => 'kohana',
            'username'   => FALSE,
            'password'   => FALSE,
            'persistent' => FALSE,
        ),
        'table_prefix' => '',
        'charset'      => 'utf8',
        'caching'      => FALSE,
        'profiling'    => TRUE,
    ),
    'alternate' => array(
        'type'       => 'pdo',
        'connection' => array(
            /**
             * The following options are available for PDO:
             *
             * string   dsn         Data Source Name
             * string   username    database username
             * string   password    database password
             * boolean  persistent  use persistent connections?
             */
            'dsn'        => 'mysql:host=localhost;dbname=kohana',
            'username'   => 'root',
            'password'   => 'r00tdb',
            'persistent' => FALSE,
        ),
        /**
         * The following extra options are available for PDO:
         *
         * string   identifier  set the escaping identifier
         */
        'table_prefix' => '',
        'charset'      => 'utf8',
        'caching'      => FALSE,
        'profiling'    => TRUE,
    ),
    'mydb' => array(
        'type'       => 'mysql',
        'connection' => array(
            'hostname'   => '127.0.0.1',
            'username'   => 'test',
            'password'   => 'test',
            'persistent' => FALSE,
            'database'   => 'mydb',
        ),
        'table_prefix' => '',
        'charset'      => 'utf8',
        'profiling'    => TRUE,
    ),

）;

Answer 1

数据库::实例（ 'MYDB'）;

这不是数据库名称，而是数据库配置组。查看数据库配置文件以了解它的结构。

您可以发布配置文件吗？

Kohana：连接数据库并执行查询

1 个答案: