<?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());
?>
The above example will output
something similar to:
string(1) "b"
string(1) "c"
string(1) "a"