The SplPriorityQueue::current() function is an inbuilt function in PHP which is used to return the current node pointed by the iterator.
Syntax:
mixed SplPriorityQueue::current()
Parameters: This function does not accept any parameter.
Return Value: This function returns the value/priority of the current node depending on the extract flag.
Example:
<?php
// Declare a class
class priorityQueue extends SplPriorityQueue {
// Compare function to compare priority
// queue elements
public function compare($p1, $p2) {
if ($p1 === $p2) return 0;
return $p1 < $p2 ? -1 : 1;
}
}
// Create an object of priority queue
$obj = new priorityQueue();
// Insert elements into the queue
$obj->insert("Geeks",2);
$obj->insert("GFG",1);
$obj->insert("G4G",3);
$obj->insert('G',4);
// Display the current element
// of priority queue
print_r($obj->current());
?>
Output
G
Reference: https://www.php.net/manual/en/splpriorityqueue.current.php