Php/docs/mongocollection.toindexstring
MongoCollection::toIndexString
(PECL mongo >=0.9.0)
MongoCollection::toIndexString — Converts keys specifying an index to its identifying string
说明
static protected MongoCollection::toIndexString
( mixed $keys
) : string
Warning This method is deprecated since version 1.5.0.
参数
keys- Field or fields to convert to the identifying string
返回值
Returns a string that describes the index.
范例
Example #1 MongoCollection::toIndexString() example
This example shows how you can create an index name out of keys. Because this is a protected (static) method, you need to overload it in a child class first.
<?php// Create inherited class to make the method "public".class MyCollection extends MongoCollection{ static public function toIndexString($a) { return parent::toIndexString($a); }}echo MyCollection::toIndexString("foo"), "\n";// Outputs: foo_1echo MyCollection::toIndexString(array('name' => 1, 'age' => -1)), "\n";// Outputs: name_1_age_-1?>
更新日志
| 版本 | 说明 |
|---|---|
| PECL mongo 1.5.0 | This method has been deprecated. |
