Php/docs/function.mysqlnd-ms-dump-servers
mysqlnd_ms_dump_servers
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mysqlnd_ms_dump_servers — Returns a list of currently configured servers
说明
mysqlnd_ms_dump_servers
( mixed $connection
) : array
Returns a list of currently configured servers.
参数
connection
- A MySQL connection handle obtained from any of the connect functions of the mysqli, mysql or PDO_MYSQL extensions.
返回值
false
on error. Otherwise, returns an array with two entries
masters
and slaves
each of which contains
an array listing all corresponding servers.
The function can be used to check and debug the list of servers currently used by the plugin. It is mostly useful when the list of servers changes at runtime, for example, when using MySQL Fabric.
masters
and slaves
server entries
Key | Description | Version |
---|---|---|
name_from_config
|
Server entry name from config, if appliciable. NULL if no
configuration name is available. |
Since 1.6.0. |
hostname
|
Host name of the server. | Since 1.6.0. |
user
|
Database user used to authenticate against the server. | Since 1.6.0. |
port
|
TCP/IP port of the server. | Since 1.6.0. |
socket
|
Unix domain socket of the server. | Since 1.6.0. |
注释
Note:
mysqlnd_ms_dump_servers() requires PECL mysqlnd_ms >> 1.6.0.
范例
Example #1 mysqlnd_ms_dump_servers() example
{ "myapp": { "master": { "master1": { "host":"master1_host", "port":"master1_port", "socket":"master1_socket", "db":"master1_db", "user":"master1_user", "password":"master1_pw" } }, "slave": { "slave_0": { "host":"slave0_host", "port":"slave0_port", "socket":"slave0_socket", "db":"slave0_db", "user":"slave0_user", "password":"slave0_pw" }, "slave_1": { "host":"slave1_host" } } } }
<?php$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" } } }