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    MongoCursor::count

    (PECL mongo >=0.9.2)

    MongoCursor::count — Counts the number of results for this query

    설명

    public int MongoCursor::count ([ bool $foundOnly = FALSE ] )

    This method does not affect the state of the cursor: if you haven't queried yet, you can still apply limits, skips, etc. If you have started iterating through results, it will not move the current position of the cursor. If you have exhasted the cursor, it will not reset it.

    인수

    foundOnly

    Send cursor limit and skip information to the count function, if applicable.

    반환값

    The number of documents returned by this cursor's query.

    예제

    Example #1 MongoCursor::count() example

    <?php

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

    $cursor = $collection->find();

    var_dump($cursor->count());
    var_dump($cursor->count(true));

    $cursor->limit(2);

    var_dump($cursor->count());
    var_dump($cursor->count(true));

    ?>

    위 예제의 출력 예시:

    int(3)
int(3)
int(3)
int(2)

    오류/예외

    Throws MongoConnectionException if it cannot reach the database.

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