Codeigniter 3.0.3 数据库配置

Question

我是 codeigniter 3.0 的新手。我正在将我的项目上传到我的服务器上。但我面临一些困扰我的错误。但它在本地运行良好。我用谷歌搜索但没有找到我的答案。我认为存在一些数据库配置问题。

这是我的database.php

$db['default'] = array(
'dsn'   => '',
'hostname' => 'http://selectomobile.com/freber',
'username' => 'my username',
'password' => 'mypassword',
'database' => 'mydatabasename',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE

);

有些错误让我很恼火。

1.

遇到了一个PHP错误严重性：警告消息：mysqli::real_connect()：php_network_getaddresses：getaddrinfo 失败：名称或服务未知文件名：mysqli/mysqli_driver.php 行号：161 回溯：文件：/home/selectom/public_html/freber/index.php 线路：292 函数：require_once

2.

遇到了一个PHP错误严重性：警告消息：mysqli::real_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known 文件名：mysqli/mysqli_driver.php 行号：161 回溯：文件：/home/selectom/public_html/freber/index.php 线路：292 函数：require_once

3.

遇到了一个PHP错误严重性：警告消息：无法修改 header 信息 - headers 已经发送（输出开始于 /home/selectom/public_html/freber/system/core/Exceptions.php:272）文件名：core/Common.php 行号：568 回溯：文件：/home/selectom/public_html/freber/index.php 线路：292 函数：require_once

4.

发生数据库错误无法使用提供的设置连接到您的数据库服务器。文件名：core/CodeIgniter.php 行号：500

Answer 1

您的代码有误

您的代码

$db['default'] = array(
'dsn'   => '',
'hostname' => 'http://selectomobile.com/freber', # Wrong 
'username' => 'my username',
'password' => 'mypassword',
'database' => 'mydatabasename',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => FALSE, # don't change this
'db_debug' => (ENVIRONMENT !== 'production'), # Wrong 
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE # There is no such config
);

我的 (Database Configuration Codeigniter)

$db['default'] = array(
    'dsn'   => '',
    'hostname' => 'localhost', # this should be localhost
    'username' => 'root', # username which creates from DB wizard
    'password' => '', # password which creates from DB wizard
    'database' => 'database_name',
    'dbdriver' => 'mysqli',
    'dbprefix' => '',
    'pconnect' => TRUE,
    'db_debug' => TRUE, # Changed
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array()
);

要换环境

转到根目录中的 index.php。 (如果CI3第56行)

define('ENVIRONMENT', isset($_SERVER['CI_ENV']) ? $_SERVER['CI_ENV'] : 'development');

可用环境

发展
测试
生产

Codeigniter 3.0.3 数据库配置

Codeigniter 3.0.3 Database configration

php

codeigniter

mysqli

codeigniter-3

您的代码

我的 (Database Configuration Codeigniter)