SplDoublyLinkedList::add

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

SplDoublyLinkedList::addAdd/insert a new value at the specified index

Beschreibung

public SplDoublyLinkedList::add(int $index, mixed $value): void

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

Parameter-Liste

index

The index where the new value is to be inserted.

value

The new value for the index.

Rückgabewerte

Es wird kein Wert zurückgegeben.

Fehler/Exceptions

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

add a note

User Contributed Notes 1 note

up
0
lincoln dot du dot j at gmail dot com
7 years ago
$a = new SplDoublyLinkedList;
$arr=[1,2,3,4,5,6,7,8,9];

for($i=0;$i<count($arr);$i++){
$a->add($i,$arr[$i]);
}

print_r($a);

//Output:

SplDoublyLinkedList Object
(
[flags:SplDoublyLinkedList:private] => 0
[dllist:SplDoublyLinkedList:private] => Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
[6] => 7
[7] => 8
[8] => 9
)

)
To Top