Ds\PriorityQueue::pop

(PECL ds >= 1.0.0)

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

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

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

Note:

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

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

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UnderflowException if empty.

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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());
?>

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