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

The Ds\Stack::count() function is an inbuilt function in PHP which is used to count the number of elements present in the Stack.

Syntax:

int Ds\Stack::count( void )

Parameters: This function does not accept any parameter.

Return Value: This function returns the number of elements present in the Stack.

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



Program 1:




<?php 
  
// Declare new stack 
$stack = new \Ds\Stack([10, 15, 21]); 
  
// Display the stack element 
var_dump($stack); 
  
// Count number of elements 
// present in the stack 
echo "Number of elements present in the stack: "
print_r($stack->count()); 
  
?> 
Output:
object(Ds\Stack)#1 (3) {
  [0]=>
  int(21)
  [1]=>
  int(15)
  [2]=>
  int(10)
}
Number of elements present in the stack: 3

Program 2:




<?php 
  
// Declare new stack 
$stack = new \Ds\Stack(["Geeks", "for", "Keegs"]); 
  
// Display the stack element 
print_r($stack); 
  
// Display count of elements 
// present in the stack 
echo "Number of elements present in the stack: "
var_dump($stack->count()); 
  
?> 
Output:
Ds\Stack Object
(
    [0] => Keegs
    [1] => for
    [2] => Geeks
)
Number of elements present in the stack: int(3)

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

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