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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
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mysqlnd_ms_dump_servers — Returns a list of currently configured servers
$connection
)Returns a list of currently configured servers.
connection
A MySQL connection handle obtained from any of the connect functions of the mysqli, mysql or PDO_MYSQL extensions.
FALSE
on error. Otherwise, returns an array with two entries
masters and slaves each of which contains
an array listing all corresponding servers.
The function can be used to check and debug the list of servers currently used by the plugin. It is mostly useful when the list of servers changes at runtime, for example, when using MySQL Fabric.
masters and slaves server entries
Key | Description | Version |
---|---|---|
name_from_config | Server entry name from config, if appliciable. NULL if no configuration name is available. | Since 1.6.0. |
hostname | Host name of the server. | Since 1.6.0. |
user | Database user used to authenticate against the server. | Since 1.6.0. |
port | TCP/IP port of the server. | Since 1.6.0. |
socket | Unix domain socket of the server. | Since 1.6.0. |
Note:
mysqlnd_ms_dump_servers() requires PECL mysqlnd_ms >> 1.6.0.
Example #1 mysqlnd_ms_dump_servers() example
{ "myapp": { "master": { "master1": { "host":"master1_host", "port":"master1_port", "socket":"master1_socket", "db":"master1_db", "user":"master1_user", "password":"master1_pw" } }, "slave": { "slave_0": { "host":"slave0_host", "port":"slave0_port", "socket":"slave0_socket", "db":"slave0_db", "user":"slave0_user", "password":"slave0_pw" }, "slave_1": { "host":"slave1_host" } } } }
<?php
$link = mysqli_connect ( "myapp" , "global_user" , "global_pass" , "global_db" , 1234 , "global_socket" );
var_dump ( mysqlnd_ms_dump_servers ( $link );
?>
以上例程会输出:
array(2) { ["masters"]=> array(1) { [0]=> array(5) { ["name_from_config"]=> string(7) "master1" ["hostname"]=> string(12) "master1_host" ["user"]=> string(12) "master1_user" ["port"]=> int(3306) ["socket"]=> string(14) "master1_socket" } } ["slaves"]=> array(2) { [0]=> array(5) { ["name_from_config"]=> string(7) "slave_0" ["hostname"]=> string(11) "slave0_host" ["user"]=> string(11) "slave0_user" ["port"]=> int(3306) ["socket"]=> string(13) "slave0_socket" } [1]=> array(5) { ["name_from_config"]=> string(7) "slave_1" ["hostname"]=> string(11) "slave1_host" ["user"]=> string(12) "gloabal_user" ["port"]=> int(1234) ["socket"]=> string(13) "global_socket" } } }
[#1] Vladimir [2014-09-12 16:00:12]
Shouldn't it be:
var_dump(mysqlnd_ms_dump_servers($link));
?