SplDoublyLinkedList::add

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

    SplDoublyLinkedList::add — Add/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.

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    User Contributed Notes 1 note

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    lincoln dot du dot j at gmail dot com
    8 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        ))
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