Ds\Queue::peek

(PECL ds >= 1.0.0)

Ds\Queue::peek — Returns the value at the front of the queue

public Ds\Queue::peek(): mixed

Returns the value at the front of the queue, but does not remove it.

Bu işlevin bağımsız değişkeni yoktur.

The value at the front of the queue.

Örnek 1 Ds\Queue::peek() example

<?php
$queue = new \Ds\Queue();

$queue->push("a");
$queue->push("b");
$queue->push("c");

var_dump($queue->peek());
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

string(1) "a"

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