MongoCursor::count

(PECL mongo >=0.9.2)

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

Opis

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.

Parametry

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

Zwracane wartości

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

Przykłady

Przykład #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));

?>

Powyższy przykład wyświetli coś podobnego do:

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

Błędy/Wyjątki

Throws MongoConnectionException if it cannot reach the database.