note 22037 modified in language.variables.variable by danbrown
| From: | danbrown@php.net | Date: | Wed, 24 Jun 2009 17:01:51 +0000 |
| Subject: | note 22037 modified in language.variables.variable by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-157419@lists.php.net to get a copy of this message | ||
The 'dollar dereferencing' (to coin a phrase) doesn't seem to be limited to two
layers, even without curly braces. Observe:
<?php
$one = "two";
$two = "three";
$three = "four";
$four = "five";
echo $$$$one; //prints 'five'.
?>
This works for L-values as well. So the below works the same way:
<?php
$one = "two";
$$one = "three";
$$$one = "four";
$$$$one = "five";
echo $$$$one; //still prints 'five'.
?>
NOTE: Tested on PHP 4.2.1, Apache 2.0.36, Red Hat 7.2
--was--
/*The 'dollar dereferencing' (to coin a phrase) doesn't seem to be limited to two
layers, even without curly braces. Observe:*/
$one = "two";
$two = "three";
$three = "four";
$four = "five";
echo $$$$one; //prints 'five'.
/*This works for L-values as well. So the below works the same way:*/
$one = "two";
$$one = "three";
$$$one = "four";
$$$$one = "five";
echo $$$$one; //still prints 'five'.
/*NOTE: PHP 4.2.1, Apache 2.0.36, Red Hat 7.2*/
http://php.net/manual/en/language.variables.variable.php