The SplHeap::count() function is an inbuilt function in PHP which is used to count the elements in the heap.
Generally, Heap can be of two types:
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- Max-Heap: In a Max-Heap the key present at the root node must be greatest among the keys present at all of its children. The same property must be recursively true for all sub-trees in that Binary Tree.
- Min-Heap: In a Min-Heap the key present at the root node must be minimum among the keys present at all of its children. The same property must be recursively true for all sub-trees in that Binary Tree.
int SplMaxHeap::count()Parameters: This function does not accept any parameter. Return Value: This function returns the number of nodes present in heap. Below programs illustrate the SplMaxHeap::count() function in PHP: Program 1:
<?php
// Create a new empty Max Heap
$heap = new SplMaxHeap();
$heap->insert('GEEKS');
$heap->insert('gfg');
// Print Result
echo $heap->count();
?>
Output:
Program 2:
2
<?php
// Create a new empty Max Heap
$heap = new SplMaxHeap();
// Print Result
echo $heap->count() . "\n";
$heap->insert('GEEKS');
$heap->insert('gfg');
$heap->insert('DSA');
$heap->insert('ALGO');
$heap->insert('C');
// Print Result
echo $heap->count();
?>
Output:
Reference: https://www.php.net/manual/en/splheap.count.php0 5