ArrayObject::offsetUnset

(PHP 5, PHP 7, PHP 8)

ArrayObject::offsetUnset — Unsets the value at the specified index

public function ArrayObject::offsetUnset(mixed $key): void

Unsets the value at the specified index.

No value is returned.

Example #1 ArrayObject::offsetUnset() example

<?php
$arrayobj = new ArrayObject(array(0=>'zero',2=>'two'));
$arrayobj->offsetUnset(2);
var_dump($arrayobj);
?>

The above example will output:

object(ArrayObject)#1 (1) {
  ["storage":"ArrayObject":private]=>
  array(1) {
    [0]=>
    string(4) "zero"
  }
}