MongoCollection::count - Counts the number of documents in this collection
Вернуться к: MongoCollection
MongoCollection::count
(PECL mongo >=0.9.0)
MongoCollection::count — Counts the number of documents in this collection
Описание
$query = array()
[, array $options = array()
]] )Список параметров
-
query -
Associative array or object with fields to match.
-
options -
An array of options for the index creation. Currently available options include:
Имя Тип Описание hint mixed Index to use for the query. If a string is passed, it should correspond to an index name. If an array or object is passed, it should correspond to the specification used to create the index (i.e. the first argument to MongoCollection::createIndex()).
This option is only supported in MongoDB 2.6+.limit integer The maximum number of matching documents to return. maxTimeMS integer Specifies a cumulative time limit in milliseconds for processing the operation (does not include idle time). If the operation is not completed within the timeout period, a MongoExecutionTimeoutException will be thrown.
This option is only supported in MongoDB 2.6+.skip integer The number of matching documents to skip before returning results.
Возвращаемые значения
Returns the number of documents matching the query.
Ошибки
Throws MongoResultException if the server could not execute the command due to an error.
Throws MongoExecutionTimeoutException if command execution was terminated due to maxTimeMS.
Список изменений
| Версия | Описание |
|---|---|
| 1.6.0 |
The second parameter is now an options array.
Passing limit and skip as
the second and third parameters, respectively, is deprecated.
|
| 1.0.7 |
Added limit and skip as
second and third parameters, respectively.
|
Примеры
Пример #1 MongoCollection::count() example
<?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)));
?>
Результатом выполнения данного примера будет что-то подобное:
int(3) int(1)
Вернуться к: MongoCollection