Ds\PriorityQueue::isEmpty

(PECL ds >= 1.0.0)

Ds\PriorityQueue::isEmptyReturns whether the queue is empty

Description

public Ds\PriorityQueue::isEmpty(): bool

Returns whether the queue is empty.

Parameters

This function has no parameters.

Return Values

Returns true if the queue is empty, false otherwise.

Examples

Example #1 Ds\PriorityQueue::isEmpty() example

<?php$a = new \Ds\PriorityQueue();$b = new \Ds\PriorityQueue();$a->push("a",  5);$a->push("b", 15);$a->push("c", 10);var_dump($a->isEmpty());var_dump($b->isEmpty());?>

The above example will output something similar to:

bool(false)
bool(true)