GoLang MongoClient::getReadPreference

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PHP MongoClient::getReadPreference

PHP original manual for MongoClient::getReadPreference [ show | php.net ]

MongoClient::getReadPreference

(PECL mongo >=1.3.0)

MongoClient::getReadPreferenceGet the read preference for this connection

This extension that defines this method is deprecated. Instead, the MongoDB extension should be used. There is no equivalent for this method in the new extension.

Description

public array MongoClient::getReadPreference ( void )

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.

Changelog

Version Description
1.3.3 The return value has changed to be consistent with MongoClient::setReadPreference(). The type value was changed from a number to a string, type_string was removed, and tagsets now expresses tags as key/value pairs instead of colon-delimited strings.

Examples

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

<?php

$m 
= new MongoClient();
$m->setReadPreference(MongoClient::RP_SECONDARY, array(
    array(
'dc' => 'east''use' => 'reporting'),
    array(
'dc' => 'west'),
    array(),
));
var_dump($m->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