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8.3.9.22 mysqli::$protocol_version, mysqli_get_proto_info

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  • 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

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 8.59 $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


See Also

mysqli_get_host_info