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Retrieve the number of items in the queue.

This is intended to provide a "best guess" count of the number of items in the queue. Depending on the implementation and the setup, the accuracy of the results of this function may vary.

e.g. On a busy system with a large number of consumers and items, the result might only be valid for a fraction of a second and not provide an accurate representation.

Rückgabewert

An integer estimate of the number of items in the queue.

Verwandte Themen

Queue operations

The queue system allows placing items in a queue and processing them later. The system tries to ensure that only one consumer can process an item.

Code

modules/system/system.queue.inc, line 108

<?php
public function numberOfItems();
?>