SplHeap::rewind
SplHeap::valid
SplHeap
PHP Manual

# SplHeap::top

(PHP 5 >= 5.3.0)

SplHeap::top — Peeks at the node from the top of the heap

### Description

public mixed SplHeap::top ( void )

### Parameters

This function has no parameters.

### Return Values

The value of the node on the top.

### Errors/Exceptions

Throws RuntimeException when the data-structure is empty.

SplHeap::rewind
SplHeap::valid
SplHeap
PHP Manual