note 94565 deleted from language.types.type-juggling by danbrown
| From: | danbrown@php.net | Date: | Thu, 12 Nov 2009 13:32:35 +0000 |
| Subject: | note 94565 deleted from language.types.type-juggling by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-162803@lists.php.net to get a copy of this message | ||
Note Submitter: montana
----
$var = 1;
$var_unset = (unset) $var;
$var_ref_unset = &$var; //this causes wipeout when reference is unset
$var_ref_unset = (unset) $var_ref_unset;
var_dump($var);
var_dump($var_unset);
var_dump($var_ref_unset);
outputs:
NULL NULL NULL
could be useful for expiring a chain of values.