PHP Ds\PriorityQueue count() Function Last Updated : 09 Nov, 2020 Summarize Comments Improve Suggest changes Share Like Article Like Report 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); $pq->push("Three", 3); // Count the number of elements // in this PriorityQueue print_r($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); $pq->push("Geeks", 3); // Count the number of elements // in this PriorityQueue print_r($pq->count()); ?> Output: 3 Reference: http://php.net/manual/en/ds-priorityqueue.count.php Comment More infoAdvertise with us Next Article PHP Ds\PriorityQueue count() Function G gopaldave Follow Improve Article Tags : Web Technologies PHP PHP-function PHP-ds_priorityqueue Similar Reads PHP SplPriorityQueue count() Function The SplPriorityQueue::count() function is an inbuilt function in PHP which is used to count the number of elements in the queue. Syntax: int SplPriorityQueue::count() Parameters: This function does not accept any parameters. Return Value: This function returns the number of elements in the queue. Ex 1 min read PHP SplPriorityQueue current() Function The SplPriorityQueue::current() function is an inbuilt function in PHP which is used to return the current node pointed by the iterator. Syntax: mixed SplPriorityQueue::current() Parameters: This function does not accept any parameter. Return Value: This function returns the value/priority of the cu 1 min read PHP SplPriorityQueue compare() Function The SplPriorityQueue::compare() function is an inbuilt function in PHP which is used to compare the priority queue elements to place at a particular order in the heap data structure. Syntax: int SplPriorityQueue::compare( mixed $priority1 , mixed $priority2 ) Parameters: This function accepts two pa 2 min read PHP SplPriorityQueue extract() Function The SplPriorityQueue::extract() function is an inbuilt function in PHP which is used to extract a node from top of the heap and sift up. Syntax: mixed SplPriorityQueue::extract() Parameters: This function does not accept any parameter. Return Value: This function returns the value/priority (or both) 1 min read PHP SplPriorityQueue key() Function The SplPriorityQueue::key() function is an inbuilt function in PHP that is used to return the current node index. Syntax: mixed SplPriorityQueue::key() Parameters: This function does not accept any parameter. Return Value: This function returns the current node index. Example: PHP <?php // Declar 1 min read Like