Peeks at the node from the top of the heap

# SplHeap::top

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

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

### Description

public SplHeap::top(): mixed

### 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.

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open