SplDoublyLinkedList
PHP Manual

SplDoublyLinkedList::add

(PHP 5 >= 5.5.0, PHP 7)

SplDoublyLinkedList::add — Add/insert a new value at the specified index

説明

public void SplDoublyLinkedList::add ( mixed $index , mixed $newval )

Insert the value newval at the specified index, shuffling the previous value at that index (and all subsequent values) up through the list.

パラメータ

index

The index where the new value is to be inserted.

newval

The new value for the index.

返り値

値を返しません。

エラー / 例外

Throws OutOfRangeException when index is out of bounds or when index cannot be parsed as an integer.

SplDoublyLinkedList
PHP Manual