Ds\PriorityQueue::pop

(PECL ds >= 1.0.0)

Ds\PriorityQueue::pop — Removes and returns the value with the highest priority.

Descrierea

public mixed Ds\PriorityQueue::pop ( void )

Removes and returns the value at the front of the queue, ie. the value with the highest priority.

Notă:
Values with equal priority fall back to FIFO (first in first out).

Parametri

Această funcție nu are parametri.

Valorile întoarse

The removed value which was at the front of the queue.

Erori/Excepții

UnderflowException if empty.

Exemple

Example #1 Ds\PriorityQueue::pop() example


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

$queue->push("a",  5);
$queue->push("b", 15);
$queue->push("c", 10);

print_r($queue->pop());
print_r($queue->pop());
print_r($queue->pop());
?>

Exemplul de mai sus va afișa ceva similar cu:

string(1) "a"
string(1) "b"
string(1) "c"