使用php7要連接mssql要安裝的套件為pdo_dblib
```bash
# centos
yum install php70w-pdo_dblib.x86_64
# ubuntu
sudo apt-get install freetds-bin php-sybase
```
接下來我們更改freetds的設定檔，裝連線設定為utf8
```bash
# centos
vi /etc/freetds.conf
# ubuntu
sudo vi /etc/freetds/freetds.conf
```
加入兩行設定即可
```ini
# centos
tds version = 7.2
client charset = UTF-8
# ubuntu
tds version = 7.1
client charset = UTF-8
```
設定完成後連線到mssql charset就會是utf8
如果還是顯示為亂碼的話則可以利用tsql的指令來debug
```bash
tsql -S [ip] -U [username] -P [password]
```
