MongoDB\Driver\BulkWrite::count

(mongodb >=1.0.0)

MongoDB\Driver\BulkWrite::count — Count number of write operations in the bulk

说明

public MongoDB\Driver\BulkWrite::count ( void ) : int

Returns the number of write operations added to the MongoDB\Driver\BulkWrite object.

参数

此函数没有参数。

返回值

Returns number of write operations added to the MongoDB\Driver\BulkWrite object.

错误／异常

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

更新日志

版本	说明
1.2.0	Returns the number of write operations added to the MongoDB\Driver\BulkWrite object. Earlier versions returned the expected number of client-to-server roundtrips required to execute all write operations.

范例

Example #1 MongoDB\Driver\BulkWrite::count() example


<?php

$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['_id' => 1, 'x' => 1]);
$bulk->insert(['_id' => 2, 'x' => 2]);
$bulk->update(['x' => 2], ['$set' => ['x' => 1]]);
$bulk->delete(['x' => 1]);

var_dump(count($bulk));

?>

以上例程会输出：

int(4)