mysqli->protocol_version

mysqli_get_proto_info

(PHP 5)

mysqli_get_proto_info — Returns the version of the MySQL protocol used

Description

Object oriented style (property):

mysqli

string$protocol_version;

Procedural style:

int mysqli_get_proto_info ( mysqli $link )

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 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();

?>

Example #2 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 example will output:

Protocol version: 10