note 23198 deleted from migration4 by dams
| From: | dams@php.net | Date: | Sat, 27 Jul 2002 23:00:39 +0000 |
| Subject: | note 23198 deleted from migration4 by dams | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-33726@lists.php.net to get a copy of this message | ||
In PHP3, setting an array element to a variable did not cause the element to be created. In PHP4, it
does and it doesn't. For example, in both versions, the following:
$x['y'] = $z;
if (!isset($x['y'])) echo "not "; echo "set";
where $z is not set, will output "not set", as expected. *However*, in PHP4, walking
through the array with each() will return the 'y' element. In PHP3 it doesn't.