PHP SplDoublyLinkedList offsetSet() Function
Last Updated :
23 Jun, 2023
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
$list = new \SplDoublyLinkedList;
$list ->add(0, 30);
$list ->add(1, 20);
$list ->add(2, 30);
$list ->add(3, "Geeks" );
$list ->add(4, 'G' );
$list -> rewind ();
$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
$list = new \SplDoublyLinkedList();
$list ->push(1);
$list ->push(2);
$list ->push(3);
$list ->push(8);
$list ->push(5);
$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
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