Re: constant name
| From: | Jason Garber | Date: | Wed, 05 May 2004 20:43:11 +0000 |
| Subject: | Re: constant name | ||
| Groups: | php.internals | ||
| Request: | Send a blank email to internals+get-9674@lists.php.net to get a copy of this message | ||
Does it output "barfoo" or "bar"?
~Jason
At 5/5/2004 10:01 PM +0200, Mehdi Achour wrote:
Hi !
The manual reads :
"The name of a constant follows the same rules as any label in PHP. A
valid constant name starts with a letter or underscore, followed
by any number of letters, numbers, or underscores. As a regular
expression, it would be expressed thusly:
'[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]'"
I know that this is true when trying to echo a constant directly, as the parser raise an error, but you can trick it with a constant() call :
<?php
define('
(\ /)
{=B0_=B0)
() ()
( )( )
', 'barfoo');
echo constant('
(\ /)
{=B0_=B0)
() ()
( )( )
') . chr(10); // outputs : bar
Is it a feature or a bug ? :)
Mehdi Achour
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Jason Garber
President & Chief Technology Officer
IonZoft, Inc.
814.742.8030 :: jason@ionzoft.com :: http://IonZoft.com
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