The SplDoublyLinkedList::offsetSet() function is an inbuilt function in PHP which is used to set the value at given index.
Syntax:
void SplDoublyLinkedList::offsetSet( $index, $newval )
Parameters: This function accepts two parameters as mentioned above and described below:
- $index: It holds the index where value to be set.
- $newval: It holds the value which to be set at given index.
Return Value: It does not return any value.
Below programs illustrate the SplDoublyLinkedList::offsetSet() function in PHP:
Program 1:
<?php // Declare an empty SplDoublyLinkedList $list = new \SplDoublyLinkedList;
// Use SplDoublyLinkedList::add() function to // add elements to the SplDoublyLinkedList $list ->add(0, 30);
$list ->add(1, 20);
$list ->add(2, 30);
$list ->add(3, "Geeks" );
$list ->add(4, 'G' );
$list -> rewind ();
// Use SplDoublyLinkedList::offsetSet() function // to set the value at given index $list ->offsetSet(1, "GeeksforGeeks" );
$list ->offsetSet(2, "Welcome" );
var_dump( $list );
?> |
Output:
object(SplDoublyLinkedList)#1 (2) { ["flags":"SplDoublyLinkedList":private]=> int(0) ["dllist":"SplDoublyLinkedList":private]=> array(5) { [0]=> int(30) [1]=> string(13) "GeeksforGeeks" [2]=> string(7) "Welcome" [3]=> string(5) "Geeks" [4]=> string(1) "G" } }
Program 2:
<?php // Declare an empty SplDoublyLinkedList $list = new \SplDoublyLinkedList();
// Use SplDoublyLinkedList::push() function to // add elements to the SplDoublyLinkedList $list ->push(1);
$list ->push(2);
$list ->push(3);
$list ->push(8);
$list ->push(5);
// Use SplDoublyLinkedList::offsetSet() function // to set the value at given index $list ->offsetSet(1, "Welcome" );
$list ->offsetSet(2, "to" );
$list ->offsetSet(3, "GeeksforGeeks" );
print_r( $list );
?> |
Output:
SplDoublyLinkedList Object ( [flags:SplDoublyLinkedList:private] => 0 [dllist:SplDoublyLinkedList:private] => Array ( [0] => 1 [1] => Welcome [2] => to [3] => GeeksforGeeks [4] => 5 ) )
Reference: https://www.php.net/manual/en/spldoublylinkedlist.offsetset.php