Ds\PriorityQueue::peek
(PECL ds >= 1.0.0)
Ds\PriorityQueue::peek — Returns the value at the front of the queue.
설명
Returns the value at the front of the queue, but does not remove it.
인수
이 함수는 인수가 없습니다.
반환값
The value at the front of the queue.
오류/예외
UnderflowException if empty.
예제
Example #1 Ds\PriorityQueue::peek() example
<?php
$queue = new \Ds\PriorityQueue();
$queue->push("a", 5);
$queue->push("b", 15);
$queue->push("c", 10);
var_dump($queue->peek());
?>
위 예제의 출력 예시:
string(1) "b"
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