MongoCollection::count

(PECL mongo >=0.9.0)

MongoCollection::count — Counts the number of documents in this collection

설명

public int MongoCollection::count ([ array $query= array() [, array $fields= array() ]] )

인수

query: Only count documents matching this query.
fields: Only count documents with these fields.

반환값

Returns the number of documents.

예제

Example #1 MongoCollection::count() example


<?php

$collection->insert(array('x'=>1));
$collection->insert(array('x'=>2));
$collection->insert(array('x'=>3, 'y'=>1));

var_dump($collection->count());
var_dump($collection->count(array('x'=>1)));
var_dump($collection->count(array(), array('z'=>1)));

?>

위 예제의 출력 예시:

float(3)
float(1)
float(0)