MongoCursor::count

(PECL mongo >=0.9.2)

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

Descrizione

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.

Elenco dei parametri

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

Valori restituiti

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

Esempi

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));

?>

Il precedente esempio visualizzerà qualcosa simile a:

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

Errori/Eccezioni

Throws MongoConnectionException if it cannot reach the database.