ArrayObject::offsetExists

(PHP 5 >= 5.0.0, PHP 7)

Returns whether the requested index exists

public bool ArrayObject::offsetExists ( mixed $index )

Parameters:

index

The index being checked.

Returns:

TRUE if the requested index exists, otherwise FALSE

Examples:

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)

Links:

http://php.net/manual/en/arrayobject.offsetexists.php

doc_php

2016-02-24 16:20:24

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