文字

MongoDB\Driver\Cursor::getId

(mongodb >=1.0.0)

MongoDB\Driver\Cursor::getIdReturns the ID for this cursor

说明

final public MongoDB\Driver\CursorId MongoDB\Driver\Cursor::getId ( void )

Returns the MongoDB\Driver\CursorId associated with this cursor. A cursor ID uniquely identifies the cursor on the server.

参数

此函数没有参数。

返回值

Returns the MongoDB\Driver\CursorId for this cursor.

错误/异常

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

范例

Example #1 MongoDB\Driver\Cursor::getId() example

<?php


$manager  = new  MongoDB \ Driver \ Manager ( "mongodb://localhost:27017" );
$query  = new  MongoDB \ Driver \ Query ([], [ 'batchSize'  =>  2 ]);

$bulk  = new  MongoDB \ Driver \ BulkWrite ;
$bulk -> insert ([ 'x'  =>  1 ]);
$bulk -> insert ([ 'x'  =>  2 ]);
$bulk -> insert ([ 'x'  =>  3 ]);
$manager -> executeBulkWrite ( 'db.collection' $bulk );

$cursor  $manager -> executeQuery ( 'db.collection' $query );
var_dump ( $cursor -> getId ());

?>

以上例程的输出类似于:

object(MongoDB\Driver\CursorId)#5 (1) {
  ["id"]=>
  int(94810124093)
}

参见

  • MongoDB\Driver\CursorId
  • MongoDB\Driver\CursorId::__toString() - String representation of the cursor ID
上一篇: 下一篇: