(PHP 5 >= 5.3.0, PHP 7)
Compare priorities in order to place elements correctly in the heap while sifting up.
public int SplPriorityQueue::compare ( mixed $priority1, mixed $priority2 )
Compare priority1 with priority2.
Parameters:
priority1
The priority of the first node being compared.
priority2
The priority of the second node being compared.
Returns:
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.
Please login to continue.