In versions prior to PHP 5.2.2 offsetExists() would return false if index value is null.
<?php
// running PHP 5.2.1
$params = new ArrayObject(array('INT'=>null, 'STR'=> null, 'BOOL'=>null, 'LOB'=>null));
$test = $params->offsetExists('INT');
var_dump($test);
// result would be bool(false)
// running PHP 5.2.2
$params = new ArrayObject(array('INT'=>null, 'STR'=> null, 'BOOL'=>null, 'LOB'=>null));
$test = $params->offsetExists('INT');
var_dump($test);
// result would be bool(true)
?>
Both tests where made on Windows platform.
ArrayObject::offsetExists
(PHP 5, PHP 7, PHP 8)
ArrayObject::offsetExists — Vérifie si un index existe
Liste de paramètres
-
key -
L'index à vérifier.
Valeurs de retour
true if the requested index exists, otherwise false
Exemples
Exemple #1 Exemple avec ArrayObject::offsetExists()
<?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'));
?>L'exemple ci-dessus va afficher :
bool(true) bool(true) bool(false)
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goran at extensionsforjoomla dot com ¶
17 years ago
