Skip to content
Related Articles

Related Articles

Improve Article
PHP Ds\PriorityQueue copy() Function
  • Last Updated : 23 Aug, 2019

The Ds\PriorityQueue::copy() Function in PHP is used to create a shallow copy of a particular PriorityQueue instance. This function does not affect the existing PriorityQueue instance, it just creates a shallow copy of the PriorityQueue and returns it.

Syntax:

Ds\PriorityQueue public Ds\PriorityQueue::copy ( void )

Parameters: This function does not accepts any parameters.

Return Value: This function creates a shallow copy of an existing PriorityQueue instance and returns it.

Below programs illustrate the Ds\PriorityQueue::copy() Function in PHP:



Program 1:




<?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);
  
// Create copy of this PriorityQueue
// instance and print it
print_r($pq->copy());
  
?> 
Output:
Ds\PriorityQueue Object
(
    [0] => Three
    [1] => Two
    [2] => One
)

Program 2:




<?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);
  
// Create copy of this PriorityQueue
// instance and print it
print_r($pq->copy());
  
?> 
Output:
Ds\PriorityQueue Object
(
    [0] => Geeks
    [1] => for
    [2] => Geeks
)

Reference: http://php.net/manual/en/ds-priorityqueue.copy.php




My Personal Notes arrow_drop_up
Recommended Articles
Page :