PHP Ds\PriorityQueue capacity() Function

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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

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