WordPress at a glance
function is not described

SplFixedArray::offsetUnset() public WP 1.0

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

No Hooks.

Return

null. Null. Nothing.

Usage

$SplFixedArray = new SplFixedArray();
$SplFixedArray->offsetUnset( $index );
$index *(string int) (required)*

Code of SplFixedArray::offsetUnset() WP 5.7.1

<?php
public function offsetUnset($index)
{
    unset($this->internalArray[(int) $index]);
}