SplPriorityQueue::compare
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplPriorityQueue::compare — Compare priorities in order to place elements correctly in the heap while sifting up
Beschreibung
Compare priority1
with priority2
.
Parameter-Liste
-
priority1
-
The priority of the first node being compared.
-
priority2
-
The priority of the second node being compared.
Rückgabewerte
Result of the comparison, positive integer if priority1
is greater than priority2
, 0 if they are equal, negative integer otherwise.
Hinweis:
Multiple elements with the same priority will get dequeued in no particular order.