我得到了这个错误：
“此扩展需要Microsoft ODBC Driver for SQL Server。访问以下URL以下载SQL Server for x64的ODBC驱动程序：https://go.microsoft.com/fwlink/?LinkId=163712“
还有这个
“[Microsoft][ODBC Driver Manager]未找到数据源名称，且未指定默认驱动程序”
我已经安装了ODBC Driver就像在这个消息中说的那样。我在我的php.ini上添加了扩展并重新启动IIS，但仍然错误。

PHP version: 7.2.
Windows: Windows Server 2008 R2 x64
Sql Server: 2012 express

我的phpinfo PHPInfo
有人能帮我吗
使用的代码（简单的sqlsrv_connect）

$serverName = $this->host;
$connectionInfo["Database"] = $this->banco;
if ($this->user) $connectionInfo["UID"] = $this->user;
if ($this->pass) $connectionInfo["PWD"] = $this->pass;
if ($this->port) $serverName.=', '.$this->port;
$this->id_db = sqlsrv_connect( $serverName, $connectionInfo);

完整错误消息：

array(2) { 
    [0]=> array(6) { 
       [0]=> string(5) "IMSSP" 
       ["SQLSTATE"]=> string(5) "IMSSP" 
       [1]=> int(-49) 
       ["code"]=> int(-49) 
       [2]=> string(189) "This extension requires the Microsoft ODBC Driver for SQL Server. Access the following URL to download the ODBC Driver for SQL Server for x64: https://go.microsoft.com/fwlink/?LinkId=163712" 
       ["message"]=> string(189) "This extension requires the Microsoft ODBC Driver for SQL Server. Access the following URL to download the ODBC Driver for SQL Server for x64: https://go.microsoft.com/fwlink/?LinkId=163712" 
    } 
    [1]=> array(6) { 
       [0]=> string(5) "IM002" 
       ["SQLSTATE"]=> string(5) "IM002" 
       [1]=> int(0) 
       ["code"]=> int(0) 
       [2]=> string(91) "[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified" 
       ["message"]=> string(91) "[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified" 
    } 
    }