PHP | Ds\Stack capacity() Function

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The Ds\Stack::capacity() function is an inbuilt function in PHP which is used to return the current capacity of the stack.

Syntax:

int Ds\Stack::capacity( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the current capacity of the stack.

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

Program 1:

<?php  
  
// Declare new Stack  
$stack = new \Ds\Stack();  
  
// Use capacity() function to check 
// the current capacity  
var_dump($stack->capacity());  
  
?> 

Output:

int(8)

Program 2:

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

Output:

Current Capacity is: int(8)
Current Capacity is: int(8)
Current Capacity is: int(120)

Reference: https://www.php.net/manual/en/ds-stack.capacity.php

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