PHP 7.2.25 Released

Ds\PriorityQueue::peek

(PECL ds >= 1.0.0)

Ds\PriorityQueue::peekReturns the value at the front of the queue

Descrição

public Ds\PriorityQueue::peek ( void ) : mixed

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

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

The value at the front of the queue.

Erros

UnderflowException if empty.

Exemplos

Exemplo #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());
?>

O exemplo acima irá imprimir algo similar à:

string(1) "b"
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