note 111352 deleted from language.variables.variable by googleguy
| From: | googleguy@php.net | Date: | Mon, 11 Feb 2013 05:10:29 +0000 |
| Subject: | note 111352 deleted from language.variables.variable by googleguy | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-193574@lists.php.net to get a copy of this message | ||
Note Submitter: phpmanual at xtil dot net
----
PHP's implementation of variable variables has an interesting side effect that allows creation
of a nameless variable.
<?php
$x = '';
$$x = 'abc';
?>
'abc' is then stored in the variable that would be accessible through '$'... if
that weren't a syntax error.