ArrayObject::offsetExists

(PHP 5, PHP 7)

ArrayObject::offsetExists — Returns whether the requested index exists

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public ArrayObject::offsetExists ( mixed $index ) : bool

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index

The index being checked.

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TRUE if the requested index exists, otherwise FALSE

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Example #1 ArrayObject::offsetExists() example

<?php
$arrayobj = new ArrayObject(array('zero', 'one', 'example'=>'e.g.'));
var_dump($arrayobj->offsetExists(1));
var_dump($arrayobj->offsetExists('example'));
var_dump($arrayobj->offsetExists('notfound'));
?>

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bool(true)
bool(true)
bool(false)