PHP | Ds\Stack count() Function
Last Updated :
30 Jul, 2019
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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:
php
php
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());
?>
<?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:
Program 2:
object(Ds\Stack)#1 (3) {
[0]=>
int(21)
[1]=>
int(15)
[2]=>
int(10)
}
Number of elements present in the stack: 3
<?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());
?>
<?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:
Reference: https://www.php.net/manual/en/ds-stack.count.php
Ds\Stack Object
(
[0] => Keegs
[1] => for
[2] => Geeks
)
Number of elements present in the stack: int(3)
