GoLang MongoCollection::toIndexString

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PHP MongoCollection::toIndexString

PHP original manual for MongoCollection::toIndexString [ show | php.net ]

MongoCollection::toIndexString

(PECL mongo >=0.9.0)

MongoCollection::toIndexString — Converts keys specifying an index to its identifying string

Description

static protected string MongoCollection::toIndexString ( mixed $keys )
Warning

This method is deprecated since version 1.5.0.

Parameters

keys

Field or fields to convert to the identifying string

Return Values

Returns a string that describes the index.

Examples

Example #1 MongoCollection::toIndexString() example

This example shows how you can create an index name out of keys. Because this is a protected (static) method, you need to overload it in a child class first.

<?php
// Create inherited class to make the method "public".
class MyCollection extends MongoCollection
{
    static public function toIndexString($a)
    {
        return parent::toIndexString($a);
    }
}

echo MyCollection::toIndexString("foo"), "\n";
// Outputs: foo_1

echo MyCollection::toIndexString(array('name' => 1, 'age' => -1)), "\n";
// Outputs: name_1_age_-1
?>

See Also

MongoDB core docs on » indexes.

Changelog

Version Description
1.5.0 This method has been deprecated.