php - 使用 Pdo 的 Codeigniter 发出对成员函数 rowCount() 的调用

Question

我已经使用了 codeigniter 2.2.0，并且想要使用 pdo db 连接与 pdo 驱动程序，但收到类似这样的错误，所以有人能弄清楚我在这里缺少什么吗？

$active_group = 'default';
$active_record = TRUE;
$db['default']['dsn'] = '';
$db['default']['hostname'] =    'mysql:host=192.168.1.222;dbname=test';
$db['default']['username'] = 'admin';
$db['default']['password'] = 'admin';  
$db['default']['database'] = 'test';
$db['default']['dbdriver'] = 'pdo';
$db['default']['dbprefix'] = '';
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = '';
$db['default']['char_set'] = 'utf8';
$db['default']['dbcollat'] = 'utf8_general_ci';
$db['default']['swap_pre'] = '';
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE;

此后，当我运行项目时，出现了这个 fatal error fatal error :在第 42 行/opt/lampp/htdocs/collegelife/system/database/drivers/pdo/pdo_result.php 中的非对象上调用成员函数 rowCount()

Answer 1

使用Mysqli而不是 PDO。 原因 Check Sarty's comment on the question

As well Don't use mysql. Its deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0

<小时/>

设置 MySQLi

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