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PHP Ds\Queue capacity() Function

  • Last Updated : 09 Nov, 2020

The Ds\Queue::capacity() Function in PHP is used to check the current capacity of a Queue instance.

Syntax:  

int public Ds\Queue::capacity ( void )

Parameters: This function does not accepts any parameters.

Return Value: This function returns the current capacity of the Queue instance.

Below programs illustrate the Ds\Queue::capacity() function in PHP:



Program 1:  

PHP




<?php
 
// Declare new Queue
$q = new \Ds\Queue();
 
// Use capacity() function
// to check the current capacity
var_dump($q->capacity());
 
?>
Output: 
int(8)




 

Program 2: 

PHP




<?php
 
// Declare new Queue
$q = new \Ds\Queue();
 
echo("Current Capacity is: ");
 
// Use capacity() function
// to check the current capacity
var_dump($q->capacity());
 
echo("Current Capacity is: ");
 
// Use allocate() function to
// allocate capacity
$q->allocate(5);
 
// Display the allocated vector
// capacity
var_dump($q->capacity());
 
// Use allocate() function to
// allocate capacity
$q->allocate(120);
 
// Display the allocated vector
// capacity
var_dump($q->capacity());
 
?>
Output: 
Current Capacity is: int(8)
Current Capacity is: int(8)
int(128)




 

Reference: http://php.net/manual/en/ds-queue.capacity.php
 




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