无法使用PHP 7.2.4与SQL Server 2008进行连接

我在

WindowsServer2008R2

上新安装了

PHP7.2.4和Apache2.4

。所做的一切；我已经设置了路径，但问题是，当我为连接配置

PHP

文件时，会出现无法连接数据库的错误。我正在使用

codeIgniter 3.1.8

$db['default'] = array(
    'dsn' => '', 
    'hostname' => 'localhost', 
    'username' => 'root', 
    'password' => '', 
    'database' => 'database_name', 
    'dbdriver' => 'mysqli', 
    'dbprefix' => '', 
    'pconnect' => TRUE, 
    'db_debug' => TRUE, 
    'cache_on' => FALSE 
)

 define('ENVIRONMENT','development');                            
 $db['test1'] = array( 'dsn'    => '',
    'hostname' => 'MY_MSSQL_DB_FQDN\i1,10001',
    'username' => 'somemssqluser',
    'password' => 'somemssqlpassword',
    'database' => 'somedbname',
    'dbdriver' => 'sqlsrv',
    '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
);

定义（‘环境’、‘发展’）；这是MSSQL 2008R2的Codeigniter 3，database.php（非SSPI）代码段示例：

 define('ENVIRONMENT','development');                            
 $db['test1'] = array( 'dsn'    => '',
    'hostname' => 'MY_MSSQL_DB_FQDN\i1,10001',
    'username' => 'somemssqluser',
    'password' => 'somemssqlpassword',
    'database' => 'somedbname',
    'dbdriver' => 'sqlsrv',
    '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
);

---

显示您的数据库配置文件

$db['default']=array（'dsn'=>''，'hostname'=>'localhost'，'username'=>'root'，'password'=>''，'database'=>'database'=>'database'=>'dbdriver'=>'mysqli'，'dbprefix'=>''，'pconnect'=>TRUE'，db\u debug'=>TRUE'，cache\u on'=>FALSE）

请阅读：为什么您的dbdriver

是“mysqli”

？