以下示例以CentOs7.8 + php7.3 为例，可依据理论状况切换其余版本，留神版本之间的对应关系即可

第一步，装置Microsoft ODBC driver for SQL Server (Linux)

通过 https://learn.microsoft.com/en-us/sql/connect/odbc/linux-mac/installing-the-microsoft-odbc-driver-for-sql-server?view=sql-server-ver16 查问到反对php7.3版本的 Microsoft Drivers 版本为5.6和5.8，这里抉择 5.6, 对应的 DOBC driver 版本 抉择ODBC 17
sudo su#Download appropriate package for the OS version#Choose only ONE of the following, corresponding to your OS version#Red Hat Enterprise Server 7 and Oracle Linux 7curl https://packages.microsoft.com/config/rhel/7/prod.repo > /etc/yum.repos.d/mssql-release.repo#Red Hat Enterprise Server 8 and Oracle Linux 8#curl https://packages.microsoft.com/config/rhel/8/prod.repo > /etc/yum.repos.d/mssql-release.repoexitsudo yum remove unixODBC-utf16 unixODBC-utf16-devel #to avoid conflictssudo ACCEPT_EULA=Y yum install -y msodbcsql18# optional: for bcp and sqlcmdsudo ACCEPT_EULA=Y yum install -y mssql-tools18echo 'export PATH="$PATH:/opt/mssql-tools18/bin"' >> ~/.bashrcsource ~/.bashrc# optional: for unixODBC development headerssudo yum install -y unixODBC-devel

第二步，下载 Microsoft Drivers for PHP for SQL Server

下载地址（5.6）：
https://github.com/microsoft/msphpsql/releases/download/v5.6.1/CentOS7-7.3.tar
解压文件：

第三步，装置 sqlsrv 扩大

  1. 查看以后装置的PHP版本的 Thread Safety

    php -i | grep "Thread Safety"# Thread Safety => enabled

    enabled 代表线程平安，应用 php_sqlsrv_73_ts.so 和 php_pdo_sqlsrv_73_ts.so
    disabled 代表非线程平安，应用 php_sqlsrv_73_nts.so 和 php_pdo_sqlsrv_73_nts.so

  2. 将对应的扩大文件复制到php扩大目录外面
    查看扩大目录

    php -i | grep "extension_dir"

    将文件上传到扩大目录
    能够应用xshell 拖动，或者ftp工具，此处略。

  3. 编辑 php.ini 文件，减少以下配置

    extension=php_sqlsrv_73_tsextension=php_pdo_sqlsrv_73_ts

  4. 重启php-fpm

    sudo /etc/init.d/php-fpm restart

参考文档：

https://learn.microsoft.com/en-us/sql/connect/php/system-requirements-for-the-php-sql-driver
https://learn.microsoft.com/en-us/sql/connect/odbc/linux-mac/installing-the-microsoft-odbc-driver-for-sql-server?view=sql-server-ver16
https://learn.microsoft.com/en-us/sql/connect/php/download-drivers-php-sql-server?view=sql-server-ver16
https://github.com/microsoft/msphpsql/releases/tag/v5.6.1