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(PECL mongo >=0.9.0)
MongoCollection::toIndexString — Converts keys specifying an index to its identifying string
$keys
)This method is deprecated since version 1.5.0.
keys
Field or fields to convert to the identifying string
Returns a string that describes the index.
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
?>
MongoDB core docs on » indexes.
版本 | 说明 |
---|---|
1.5.0 | This method has been deprecated. |