Check if requested index exists in an array ArrayObject::offsetExists in PHP

Description

The following code shows how to check if requested index exists in an array ArrayObject::offsetExists.

Example

<?php/*w w  w  .j  ava  2 s .c o  m*/
$arrayobj = new ArrayObject(array('0', 'one', 'example'=>'e.g.'));
var_dump($arrayobj->offsetExists(1));
var_dump($arrayobj->offsetExists('example'));
var_dump($arrayobj->offsetExists('notfound'));
?>

The code above generates the following result.