The ArrayIterator::offsetSet() function is an inbuilt function in PHP which is used to set the value for an offset.
Syntax:
void ArrayIterator::offsetSet( mixed $index, mixed $newval )
Parameters: This function accepts two parameters as mentioned above and described below:
- $index: This parameter holds the index to set the offset.
- $newval: This parameter holds the new value to store at given index.
Return Value: This function does not return any value.
Below programs illustrate the ArrayIterator::offsetSet() function in PHP:
Program 1:
<?php   // Declare an ArrayIterator $arrItr = new ArrayIterator(     array(         "a" => 4,         "b" => 2,         "g" => 8,         "d" => 6,         "e" => 1,         "f" => 9     ) );   // Update the value at index 1 $arrItr->offsetSet("g", "Geeks");     // Print the updated ArrayObject print_r($arrItr);   ?> |
Output:
ArrayIterator Object
(
[storage:ArrayIterator:private] => Array
(
[a] => 4
[b] => 2
[g] => Geeks
[d] => 6
[e] => 1
[f] => 9
)
)
Program 2:
<?php      // Declare an ArrayIterator $arrItr = new ArrayIterator(     array(         "for", "Geeks", "Science",         "Geeks", "Portal", "Computer"    ) );     // Update the value at index 1 $arrItr->offsetSet(1, "neveropen");     // Print the updated ArrayObject print_r($arrItr);   ?> |
Output:
ArrayIterator Object
(
[storage:ArrayIterator:private] => Array
(
[0] => for
[1] => neveropen
[2] => Science
[3] => Geeks
[4] => Portal
[5] => Computer
)
)
Reference: https://www.php.net/manual/en/arrayiterator.offsetset.php
