PHP | Ds\Deque count() Function
Last Updated :
14 Aug, 2019
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The Ds\Deque::count() function is an inbuilt function in PHP which is used to get the number of elements in the Deque.
Syntax:
PHP
PHP
public Ds\Deque::count( void ) : intParameters: This function does not accept any parameter. Return Value: This function returns the number of elements in the Deque. Below programs illustrate the Ds\Deque::count() function in PHP: Program 1:
<?php
// Declare a deque
$deck = new \Ds\Deque([1, 2, 3, 4, 5, 6]);
echo("Elements in the Deque\n");
// Display the Deque elements
print_r($deck);
echo("\nNumber of elements in the Deque: ");
print_r($deck->count());
?>
<?php// Declare a deque$deck = new \Ds\Deque([1, 2, 3, 4, 5, 6]);echo("Elements in the Deque\n");// Display the Deque elementsprint_r($deck);echo("\nNumber of elements in the Deque: ");print_r($deck->count());?>
Output:
Program 2:
Elements in the Deque
Ds\Deque Object
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
)
Number of elements in the Deque: 6
<?php
// Declare a deque
$deck = new \Ds\Deque(["geeks", "for", "geeks"]);
echo("Elements in the Deque\n");
// Display the Deque elements
print_r($deck);
echo("\nNumber of elements in the Deque: ");
print_r($deck->count());
?>
<?php// Declare a deque$deck = new \Ds\Deque(["geeks", "for", "geeks"]);echo("Elements in the Deque\n");// Display the Deque elementsprint_r($deck);echo("\nNumber of elements in the Deque: ");print_r($deck->count());?>
Output:
Reference: http://php.net/manual/en/ds-deque.count.php
Elements in the Deque
Ds\Deque Object
(
[0] => geeks
[1] => for
[2] => geeks
)
Number of elements in the Deque: 3
