Ds\Queue::isEmpty

(PECL ds >= 1.0.0)

Ds\Queue::isEmptyReturns 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)