MongoDB\Driver\ReadPreference::getTagSets

(mongodb >=1.0.0)

MongoDB\Driver\ReadPreference::getTagSets — Returns the ReadPreference's "tagSets" option

Description

final public MongoDB\Driver\ReadPreference::getTagSets ( ) : array

Parameters

This function has no parameters.

Return Values

Returns the ReadPreference's "tagSets" option.

Errors/Exceptions

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

Examples

Example #1 MongoDB\Driver\ReadPreference::getTagSets() example

<?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());?>

The above example will output:

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) {
  }
}

Php/docs/mongodb-driver-readpreference.gettagsets

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