CODE:
$ph= new SplPriorityQueue;
$pq->insert('Clear drains',3);
$pq->insert('Feed cat',4);
$pq->insert('Make tea',5);
$pq->insert('Solve RC tasks',1);
$pq->insert('Tax return',2);
// This line causes extract() to return both the data and priority (in an associative array),
// Otherwise it would just return the data
$pq->setExtractFlags(SplPriorityQueue::EXTR_BOTH);
while (!$pq->isEmpty()) {
print_r($pq->extract());
}
OUTPUT:
Array
(
[data] => Make tea
[priority] => 5
)
Array
(
[data] => Feed cat
[priority] => 4
)
Array
(
[data] => Clear drains
[priority] => 3
)
Array
(
[data] => Tax return
[priority] => 2
)
Array
(
[data] => Solve RC tasks
[priority] => 1
)
See:Data Structures
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