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PHP - Manual: MongoCollection::count - 互联网笔记

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PHP - Manual: MongoCollection::count

2025-05-19

MongoCollection::count

(PECL mongo >=0.9.0)

MongoCollection::count返回集合中的文档数量

说明

public MongoCollection::count ([ array $query = array() [, int $limit = 0 [, int $skip = 0 ]]] ) : int

参数

query

关联数组或者对象,含有需要匹配的字段。

limit

指定返回数量的上限。

skip

指定在开始统计前,需要跳过的结果数目。

返回值

返回查询匹配到的文档数目。

更新日志

版本 说明
1.0.7 添加了 limitskip 参数。

范例

Example #1 MongoCollection::count() 例子

<?php

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

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

?>

以上例程的输出类似于:

int(3)
int(1)
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官方地址:https://www.php.net/manual/en/mongocollection.count.php

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