mysqli_get_proto_info
(PHP 5)
mysqli_get_proto_info
(no version information, might be only in CVS)
mysqli->protocol_version -- Returns the version of the MySQL protocol used
Description
Procedural style:
int
mysqli_get_proto_info ( mysqli link )
Object oriented style (property):
class
mysqli {
string protocol_version
}
Returns an integer representing the MySQL protocol version used by the
connection represented by the link parameter.
返回值
Returns an integer representing the protocol version.
例
例子 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();
?>
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例子 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);
?>
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上例将输出：