SplDoublyLinkedList::add

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

    SplDoublyLinkedList::add — Add/insert a new value at the specified index

    Description

    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.

    Parameters

    index

    The index where the new value is to be inserted.

    value

    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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