PHP Ds\PriorityQueue capacity() Function Last Updated : 23 Aug, 2019 Comments Improve Suggest changes Like Article Like Report The Ds\PriorityQueue::capacity() Function in PHP is used to check the current capacity of a PriorityQueue instance. Syntax: int public Ds\PriorityQueue::capacity ( void ) Parameters: This function does not accepts any parameters. Return Value: This function returns the current capacity of the PriorityQueue instance. Below programs illustrate the Ds\PriorityQueue::capacity() Function in PHP: Program 1: php <?php // Declare new PriorityQueue $pq = new \Ds\PriorityQueue(); // Use capacity() function // to check the current capacity var_dump($pq->capacity()); ?> Output: int(8) Program 2: php <?php // Declare new PriorityQueue $pq = new \Ds\PriorityQueue(); echo("Current Capacity is: "); // Use capacity() function // to check the current capacity var_dump($pq->capacity()); echo("Current Capacity is: "); // Use allocate() function to // allocate capacity $pq->allocate(5); // Display the allocated vector // capacity var_dump($pq->capacity()); // Use allocate() function to // allocate capacity $pq->allocate(120); // Display the allocated vector // capacity var_dump($pq->capacity()); ?> Output: Current Capacity is: int(8) Current Capacity is: int(8) int(128) Reference: http://php.net/manual/en/ds-priorityqueue.capacity.php Comment More infoAdvertise with us Next Article PHP Ds\PriorityQueue capacity() Function gopaldave Follow Improve Article Tags : Web Technologies PHP PHP-function PHP-ds_priorityqueue Similar Reads 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. 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