mysqli::$client_info

The function mysqli::$client_info() is used to obtain the version information of the current MySQL client library.

usage:

 $mysqli = new mysqli("localhost", "username", "password", "database"); if ($mysqli->connect_errno) { die("连接失败：" . $mysqli->connect_error); } $clientInfo = $mysqli->client_info; // 获取客户端库的版本信息echo "MySQL 客户端库版本：" . $clientInfo; $mysqli->close(); // 关闭连接

Example: Assuming the version of the MySQL client library is 8.0.19, the above code will output:

 MySQL 客户端库版本：mysqlnd 8.0.19

Please note that the mysqli::$client_info property is available in PHP 5.3.0 and above.