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PHP | Ds\Stack capacity() Function
  • Last Updated : 30 Jul, 2019
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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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