Question

如果我将dbdriver从mysqli更改为mysql它正在工作但不在mysqli中会出现什么问题？

database.php - 数据库配置

$active_group = 'default';
$query_builder = TRUE;
$db['default'] = array(
    'dsn'   => '',
    'hostname' => 'localhost',
    'username' => '',
    'password' => '',
    'database' => '',
    'dbdriver' => 'mysqli',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => FALSE,
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
);

Answer 1

请确保在Apache中安装并启用了MySQLi驱动程序。

Answer 2

为您提供三种解决方案

确保已安装php-mysqli并在apache中启用。
检查Codeigniter的系统目录。如果该位置不存在mysql / mysqli目录，则从新的codeigniter复制它。

将驱动程序从mysqli切换到pdo。

$active_group = 'default';
$query_builder = TRUE;
$db['default'] = array(
  'dsn'   => 'pgsql:host=localhost;port=3306;dbname=myproject',
  'hostname' => 'localhost',
  'username' => 'root',
  'password' => '*******',
  'database' => 'myproject',
  'dbdriver' => 'pdo',
  'dbprefix' => '',
  'pconnect' => FALSE,
  'db_debug' => FALSE,
  'cache_on' => FALSE,
  'cachedir' => '',
  'char_set' => 'utf8',
  'dbcollat' => 'utf8_general_ci',
  'swap_pre' => '',
  'encrypt' => FALSE,
  'compress' => FALSE,
  'stricton' => FALSE,
  'failover' => array(),
  'save_queries' => TRUE
);

您可以阅读参考文章中的完整教程。

https://mytechnode.com/invalid-db-driver-in-codeigniter-mysqli/

CodeIgniter mysqli - 遇到错误无效的数据库驱动程序

2 个答案: