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    MongoCursor::info

    (PECL mongo >=1.0.5)

    MongoCursor::info — Gets information about the cursor's creation and iteration

    설명

    public array MongoCursor::info ( void )

    This can be called before or after the cursor has started iterating.

    인수

    이 함수는 인수가 없습니다.

    반환값

    Returns the namespace, batch size, limit, skip, flags, query, and projected fields for this cursor. If the cursor has started iterating, additional information about iteration and the connection will be included.

    변경점

    버전 설명
    1.1.0 Added a number of other fields, including id (the cursor id), at (the driver's counter of which document is current), numReturned (the number returned by the server in the current batch), and server (which server the query was sent to—useful in conjunction with Read Preferences.
    1.0.10 Added started_iterating field, a boolean indicating if cursor is pre- or post-query.

    예제

    Example #1 MongoCursor::info() example

    <?php
    $m     = new MongoClient();

    $cursor = $m->test->foo->find(array("x" => 4), array("y" => 0));

    echo     "Before iteration started:\n";
    var_dump($cursor->info());

    echo     "\nAfter iteration started:\n";
    $cursor->rewind();
    var_dump($cursor->info());

    ?>

    위 예제의 출력 예시:

    Before iteration started:
array(8) {
  ["ns"]=>
  string(8) "test.foo"
  ["limit"]=>
  int(0)
  ["batchSize"]=>
  int(0)
  ["skip"]=>
  int(0)
  ["flags"]=>
  int(0)
  ["query"]=>
  array(1) {
    ["x"]=>
    int(4)
  }
  ["fields"]=>
  array(1) {
    ["y"]=>
    int(0)
  }
  ["started_iterating"]=>
  bool(false)
}

After iteration started:
array(15) {
  ["ns"]=>
  string(8) "test.foo"
  ["limit"]=>
  int(0)
  ["batchSize"]=>
  int(0)
  ["skip"]=>
  int(0)
  ["flags"]=>
  int(0)
  ["query"]=>
  array(1) {
    ["x"]=>
    int(4)
  }
  ["fields"]=>
  array(1) {
    ["y"]=>
    int(0)
  }
  ["started_iterating"]=>
  bool(true)
  ["id"]=>
  int(0)
  ["at"]=>
  int(0)
  ["numReturned"]=>
  int(1)
  ["server"]=>
  string(25) "localhost:27017;-;.;26450"
  ["host"]=>
  string(9) "localhost"
  ["port"]=>
  int(27017)
  ["connection_type_desc"]=>
  string(10) "STANDALONE"
}

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