The Ds\PriorityQueue::count() Function in PHP is used to get the count of elements present in a Priority Queue instance.
Syntax:
int public Ds\PriorityQueue::count( void )
Parameters: This function does not accepts any parameters.
Return Value: This function calculates the number of elements present in a Priority Queue instance and returns the count.
Below programs illustrate the Ds\PriorityQueue::count() Function in PHP:
Program 1:
PHP
<?php // Declare new PriorityQueue $pq = new \Ds\PriorityQueue(); // Add elements to the PriorityQueue$pq->push("One", 1);$pq->push("Two", 2);$pq->push("Three", 3);// Count the number of elements // in this PriorityQueueprint_r($pq->count());?> |
Output:
3
Program 2:
PHP
<?php // Declare new PriorityQueue $pq = new \Ds\PriorityQueue(); // Add elements to the PriorityQueue$pq->push("Geeks", 1);$pq->push("for", 2);$pq->push("Geeks", 3);// Count the number of elements // in this PriorityQueueprint_r($pq->count());?> |
Output:
3
Reference: http://php.net/manual/en/ds-priorityqueue.count.php
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