note 111352 added to language.variables.variable
| From: | phpmanual at xtil dot net | Date: | Mon, 11 Feb 2013 05:09:20 +0000 |
| Subject: | note 111352 added to language.variables.variable | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-193573@lists.php.net to get a copy of this message | ||
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.
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Server IP: 69.147.83.199
Probable Submitter: 67.1.111.190
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Manual Page -- http://php.net/manual/en/language.variables.variable.php
Edit -- https://master.php.net/note/edit/111352
Del: integrated -- https://master.php.net/note/delete/111352/integrated
Del: useless -- https://master.php.net/note/delete/111352/useless
Del: bad code -- https://master.php.net/note/delete/111352/bad+code
Del: spam -- https://master.php.net/note/delete/111352/spam
Del: non-english -- https://master.php.net/note/delete/111352/non-english
Del: in docs -- https://master.php.net/note/delete/111352/in+docs
Del: other reasons-- https://master.php.net/note/delete/111352
Reject -- https://master.php.net/note/reject/111352
Search -- https://master.php.net/manage/user-notes.php