MongoCollection
PHP Manual

MongoCollection::count

(PECL mongo >=0.9.0)

MongoCollection::countCounts the number of documents in this collection

Description

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

Parameters

query

Only count documents matching this query.

fields

Only count documents with these fields.

Return Values

Returns the number of documents.

Examples

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)));

?>

The above example will output something similar to:

int(3)
int(1)
int(0)

MongoCollection
PHP Manual