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<ArrayObject::offsetGetArrayObject::offsetUnset>
^ArrayObjectLast updated: Mon, 26 Oct 2026

ArrayObject::offsetSet

(PHP 5, PHP 7, PHP 8)

ArrayObject::offsetSet — Sets the value at the specified index to newval

Description

public function ArrayObject::offsetSet(mixed $key, mixed $value): void

Sets the value at the specified index to newval.

Parameters

key

The index being set.

value

The new value for the key.

Return Values

No value is returned.

Examples

Example #1 ArrayObject::offsetSet() example

<?php
class Example {
    public $property = 'prop:public';
}
$arrayobj = new ArrayObject(new Example());
$arrayobj->offsetSet(4, 'four');
$arrayobj->offsetSet('group', array('g1', 'g2'));
var_dump($arrayobj);

$arrayobj = new ArrayObject(array('zero','one'));
$arrayobj->offsetSet(null, 'last');
var_dump($arrayobj);
?>

The above example will output:

object(ArrayObject)#1 (1) {
  ["storage":"ArrayObject":private]=>
  object(Example)#2 (3) {
    ["property"]=>
    string(11) "prop:public"
    ["4"]=>
    string(4) "four"
    ["group"]=>
    array(2) {
      [0]=>
      string(2) "g1"
      [1]=>
      string(2) "g2"
    }
  }
}
object(ArrayObject)#3 (1) {
  ["storage":"ArrayObject":private]=>
  array(3) {
    [0]=>
    string(4) "zero"
    [1]=>
    string(3) "one"
    [2]=>
    string(4) "last"
  }
}

See Also


<ArrayObject::offsetGetArrayObject::offsetUnset>
^ArrayObjectLast updated: Mon, 26 Oct 2026