SplDoublyLinkedList::add
(PHP 5 >= 5.5.0, PHP 7)
SplDoublyLinkedList::add — Add/insert a new value at the specified index
说明
Insert the value newval
at the specified index
, shuffling the previous value at that index (and all subsequent values) up through the list.
参数
-
index
-
The index where the new value is to be inserted.
-
newval
-
The new value for the
index
.
返回值
没有返回值。
错误/异常
Throws OutOfRangeException when index
is out of bounds or when index
cannot be parsed as an integer.