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PHP Manual [MongoCursor

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PHP Manual || MongoCursor

(PECL mongo >=1.3.3)

MongoCursor::getReadPreferenceGet the read preference for this query

Description

public MongoCursor::getReadPreference ( void ) : array

Parameters

This function has no parameters.

Return Values

This function returns an array describing the read preference. The array contains the values type for the string read preference mode (corresponding to the MongoClient constants), and tagsets containing a list of all tag set criteria. If no tag sets were specified, tagsets will not be present in the array.

Examples

Example #1 MongoCursor::getReadPreference() return value example

<?php

$m 
= new MongoClient();
$cursor $m->test->users->find();
$cursor->setReadPreference(MongoClient::RP_SECONDARY, array(
    array(
'dc' => 'east''use' => 'reporting'),
    array(
'dc' => 'west'),
    array(),
));
var_dump($cursor->getReadPreference());
?>

The above example will output:

array(2) {
  ["type"]=>
  string(9) "secondary"
  ["tagsets"]=>
  array(3) {
    [0]=>
    array(2) {
      ["dc"]=>
      string(4) "east"
      ["use"]=>
      string(9) "reporting"
    }
    [1]=>
    array(1) {
      ["dc"]=>
      string(7) "west"
    }
    [2]=>
    array(0) {
    }
  }
}

See Also



PHP Manual || MongoCursor