MongoCollection::__constructMongoCollection::count
(PECL mongo >=0.9.0)
MongoCollection::count — Counts the number of documents in this collection
Описание
public int MongoCollection::count
([ array $query = array()
[, array $fields = array()
]] )
Параметри
- query
-
Only count documents matching this query.
- fields
-
Only count documents with these fields.
Връщани стойности
Returns the number of documents.
Примери
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)));
?>
Примерът по-горе ще изведе нещо подобно на:
int(3) int(1) int(0)
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MongoCollection::count
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