Ds\PriorityQueue::peek
PHP function
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(PECL ds >= 1.0.0)
Returns the value at the front of the queue
Description
Ds\PriorityQueue::peek(): mixed
Returns the value at the front of the queue, but does not remove it.
Parameters Parameters
Return Values
The value at the front of the queue.
Errors/Exceptions
UnderflowException if empty.
Examples
Ds\PriorityQueue::peek() example
php
<?php
$queue = new \Ds\PriorityQueue();
$queue->push("a", 5);
$queue->push("b", 15);
$queue->push("c", 10);
var_dump($queue->peek());
?>The above example will output something similar to:
output
string(1) "b"