(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplDoublyLinkedList::offsetUnset — Unsets the value at the specified $index
$index): voidUnsets the value at the specified index.
indexThe index being unset.
沒(méi)有返回值。
Throws OutOfRangeException when index is out of bounds
or when index cannot be parsed as an integer.