Ds\Queue::isEmpty
PHP function
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(PECL ds >= 1.0.0)
Returns whether the queue is empty
Description
Ds\Queue::isEmpty(): bool
Returns whether the queue is empty.
Parameters Parameters
Return Values
Returns true if the queue is empty, false otherwise.
Examples
Ds\Queue::isEmpty() example
php
<?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:
output
bool(false)
bool(true)