(PHP 5 >= 5.5.0, PHP 7, PHP 8)
SplDoublyLinkedList::add — Add/insert a new value at the specified index
Insert the value value
at the specified index
, shuffling the previous value at that index (and all subsequent values) up through the list.
index
The index where the new value is to be inserted.
value
The new value for the index
.
No value is returned.
Throws OutOfRangeException when index
is out of bounds or when index
cannot be parsed as an integer.