MongoCursor::count
(PECL mongo >=0.9.2)
MongoCursor::count — Counts the number of results for this query
Опис
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.
Параметри
-
foundOnly -
Send cursor limit and skip information to the count function, if applicable.
Значення, що повертаються
The number of documents returned by this cursor's query.
Приклади
Приклад #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));
?>
Наведений вище приклад виведе щось подібне до:
int(3) int(3) int(3) int(2)
Помилки/Винятки
Throws MongoConnectionException if it cannot reach the database.
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