PHP Ds\PriorityQueue capacity() Function

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

// 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

// 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