Php/docs/mysqli.get-proto-info
mysqli::$protocol_version
mysqli_get_proto_info
(PHP 5, PHP 7)
mysqli::$protocol_version -- mysqli_get_proto_info — Returns the version of the MySQL protocol used
Description
Object oriented style
string $mysqli->protocol_version;
Procedural style
mysqli_get_proto_info
( mysqli $link
) : int
Returns an integer representing the MySQL protocol version used by the
connection represented by the link parameter.
Parameters
link- Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()
Return Values
Returns an integer representing the protocol version.
Examples
Example #1 $mysqli->protocol_version example
Object oriented style
<?php$mysqli = new mysqli("localhost", "my_user", "my_password");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}/* print protocol version */printf("Protocol version: %d\n", $mysqli->protocol_version);/* close connection */$mysqli->close();?>
Procedural style
<?php$link = mysqli_connect("localhost", "my_user", "my_password");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}/* print protocol version */printf("Protocol version: %d\n", mysqli_get_proto_info($link));/* close connection */mysqli_close($link);?>
The above examples will output:
Protocol version: 10
