# Ds\Queue::isEmpty

(PECL ds >= 1.0.0)

Ds\Queue::isEmpty — Returns whether the queue is empty

### Description

public Ds\Queue::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\Queue::isEmpty() example

`<?php
$a = new \Ds\Queue([1, 2, 3]);
$b = new \Ds\Queue();
var_dump($a->isEmpty());
var_dump($b->isEmpty());
?>`

The above example will output something similar to:

    bool(false)
    bool(true)