WordPress at a glance
function is not described

SplFixedArray::next() public WP 1.0

{} It's a method of the class: SplFixedArray{}

No Hooks.

Return

null. Null. Nothing.

Usage

$SplFixedArray = new SplFixedArray();
$SplFixedArray->next();

Code of SplFixedArray::next() WP 5.7

<?php
public function next()
{
    next($this->internalArray);
}