php 한글 메뉴얼 도움말 검색 사이트 Converts keys specifying an index to its identifying string [mongocollection.toindexstring]

설명

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

Warning

This method is deprecated since version 1.5.0.

인수

keys: Field or fields to convert to the identifying string

반환값

Returns a string that describes the index.

예제

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
?>

참고

MongoDB core docs on » indexes.

변경점

버전	설명
1.5.0	This method has been deprecated.