(PHP 5)
mysqli::$protocol_version -- mysqli_get_proto_info — Returns the version of the MySQL protocol used
物件導向風格
程序化風格
Returns an integer representing the MySQL protocol version used by the
connection represented by the link
parameter.
Returns an integer representing the protocol version.
Example #1 $mysqli->protocol_version example
物件導向風格
<?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();
?>
程序化風格
<?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);
?>
上例將輸出:
Protocol version: 10