Ds\PriorityQueue::isEmpty
(PECL ds >= 1.0.0)
Ds\PriorityQueue::isEmpty — Returns 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)
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https://www.php.net/manual/en/ds-priorityqueue.isempty.php