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ArrayObject::offsetExists

(PHP 5, PHP 7)

ArrayObject::offsetExists — Returns whether the requested index exists

Description

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

Parameters

index: The index being checked.

Return Values

true if the requested index exists, otherwise false

Examples

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'));
?>

The above example will output:

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

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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/arrayobject.offsetexists.php