MongoDB\Driver\ReadPreference::getTagSets
(mongodb >=1.0.0)
MongoDB\Driver\ReadPreference::getTagSets — ReadPreference의 "tagSets" 옵션을 반환합니다.
설명
final public MongoDB\Driver\ReadPreference::getTagSets(): array
매개변수
이 함수에는 매개변수가 없습니다.
반환 값
Returns the ReadPreference's "tagSets" option.
오류/예외
- 인수 구문 분석 오류에 대해 MongoDB\Driver\Exception\InvalidArgumentException을 던집니다.
Examples
예제 #1 MongoDB\Driver\ReadPreference::getTagSets() 예제
<?php
$mode = MongoDB\Driver\ReadPreference::RP_SECONDARY_PREFERRED;
/* Null and an empty array both denote no tag set preference. */
$rp = new MongoDB\Driver\ReadPreference($mode, null);
var_dump($rp->getTagSets());
$rp = new MongoDB\Driver\ReadPreference($mode, []);
var_dump($rp->getTagSets());
/* Prefer a node in New York, but fall back to any available node. */
$rp = new MongoDB\Driver\ReadPreference($mode, [['dc' => 'ny']]);
var_dump($rp->getTagSets());
/* Prefer a node in the New York, followed by a node in San Francisco that is
labeled for reporting usage, and finally fall back to any available node. */
$rp = new MongoDB\Driver\ReadPreference($mode, [
['dc' => 'ny'],
['dc' => 'sf', 'use' => 'reporting'],
[],
]);
var_dump($rp->getTagSets());
?>
위의 예는 다음을 출력합니다.
array(0) {
}
array(0) {
}
array(2) {
[0]=>
array(1) {
["dc"]=>
string(2) "ny"
}
[1]=>
array(0) {
}
}
array(3) {
[0]=>
array(1) {
["dc"]=>
string(2) "ny"
}
[1]=>
array(2) {
["dc"]=>
string(2) "sf"
["use"]=>
string(9) "reporting"
}
[2]=>
array(0) {
}
}