PHP Ds\Queue count() Function

The Ds\Queue::count() Function in PHP is used to get the count of elements present in a Queue instance.

Syntax:

int public Ds\Queue::count ( void )

Parameters: This function does not accepts any parameters.

Return Value: This function calculates the number of elements present in a Queue instance and returns the count.

Below programs illustrate the Ds\Queue::count() Function in PHP:

Program 1:

<?php

// Declare new Queue
$q = new \Ds\Queue();

// Add elements to the Queue
$q->push("One");
$q->push("Two");
$q->push("Three");

// Count the number of elements
// in this Queue
print_r($q->count());

?>

Output:

3

Program 2:

<?php

// Declare new Queue
$q = new \Ds\Queue();

// Add elements to the Queue
$q->push("Geeks");
$q->push("for");
$q->push("Geeks");

// Count the number of elements
// in this Queue
print_r($q->count());

?>

Output:

3

Reference: http://php.net/manual/en/ds-priorityqueue.count.php