SplDoublyLinkedList::add
(PHP 5 >= 5.5.0, PHP 7)
SplDoublyLinkedList::add — Add/insert a new value at the specified index
Description
public SplDoublyLinkedList::add ( mixed $index , mixed $newval ) : void
Insert the value newval at the specified index, shuffling the previous value at that index (and all subsequent values) up through the list.
Parameters
-
index -
The index where the new value is to be inserted.
-
newval -
The new value for the
index.
Return Values
No value is returned.
Errors/Exceptions
Throws OutOfRangeException when index is out of bounds or when index cannot be parsed as an integer.
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https://www.php.net/manual/en/spldoublylinkedlist.add.php