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
Description
Compare priority1 with priority2.
Parameters
-
priority1 -
The priority of the first node being compared.
-
priority2 -
The priority of the second node being compared.
Return Values
Result of the comparison, positive integer if priority1 is greater than priority2, 0 if they are equal, negative integer otherwise.
Note:
Multiple elements with the same priority will get dequeued in no particular order.
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