Skip to content
Related Articles

Related Articles

Improve Article

PHP | Ds\Stack allocate() Function

  • Last Updated : 10 May, 2021

The Ds\Stack::allocate() function is an inbuilt function in PHP which is used to allocate memory for required capacity. This function allocates sufficient memory for a given capacity of an instance of Stack class.
Syntax: 
 

void Ds\Stack::allocate( $capacity )

Parameters: This function accepts a single parameter $capacity which is an integral value denoting the number of values for which capacity is needed to allocate.
Return Value: This function does not return any value.
Below programs illustrate the Ds\Stack::allocate() function in PHP:
Program 1: 
 

php




<?php
 
// PHP program to illustrate the
// Ds\Stack::allocate() function
 
// Create a Stack instance
$stack = new \Ds\Stack();
   
echo("Allocated Space is: ");
   
// Use capacity() function
var_dump($stack->capacity());
   
echo("Allocated space is: ");
   
// Use allocate() function to 
// allocate capacity
$stack->allocate(50);
   
// Display the allocated stack
// capacity
var_dump($stack->capacity());
 
?>
Output: 
Allocated Space is: int(8)
Allocated space is: int(50)

 

Program 2: 
 

php




<?php
 
// Declare new stack
$stack = new \Ds\Stack();
 
echo("Allocated Space is: ");
 
// Use capacity() function
var_dump($stack->capacity());
 
echo("Allocated space is: ");
 
// Use allocate() function to
// allocate capacity
$stack->allocate(5);
 
// Display the stack capacity
var_dump($stack->capacity());
 
echo("Allocated space is: ");
 
// Use allocate() function to
// allocate capacity
$stack->allocate(120);
 
// Display the stack capacity
var_dump($stack->capacity());
?>
Output: 
Allocated Space is: int(8)
Allocated space is: int(8)
Allocated space is: int(120)

 

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




My Personal Notes arrow_drop_up
Recommended Articles
Page :