mysqli::$client_version

Function name: mysqli::$client_version()

Applicable version: PHP 5 >= 5.3.0, PHP 7

Usage: The mysqli::$client_version() method is used to get the version number of the current MySQL client library.

Syntax: string mysqli::$client_version ( void )

Parameters: This method does not accept any parameters.

Return value: Returns a string representing the version number of the current MySQL client library.

Example:

 $mysqli = new mysqli("localhost", "username", "password", "database"); if ($mysqli->connect_errno) { echo "Failed to connect to MySQL: " . $mysqli->connect_error; exit(); } $clientVersion = $mysqli->client_version(); echo "MySQL client version: " . $clientVersion;

In the above example, we first create a mysqli object and connect to the MySQL database. Then, use the mysqli::$client_version() method to get the version number of the MySQL client library and store it in the variable $clientVersion. Finally, output the version number to the screen.

Note: Before using the mysqli::$client_version() method, you must successfully connect to the MySQL database. If the connection fails, the error information can be obtained through the mysqli::connect_errno and mysqli::connect_error properties.