Req #54738 [NEW]: Shorter or more eadable solution to get possibly undefined variables
| From: | tulpetulpe at fastmail dot fm | Date: | Sun, 15 May 2011 18:44:35 +0000 |
| Subject: | Req #54738 [NEW]: Shorter or more eadable solution to get possibly undefined variables | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-160739@lists.php.net to get a copy of this message | ||
From:
Operating system:
PHP version: 5.3.6
Package: Scripting Engine problem
Bug Type: Feature/Change Request
Bug description:Shorter or more eadable solution to get possibly undefined variables
Description:
------------
At the moment to read a possibly undefined variable without triggering an
E_NOTICE you have to do something like this:
echo isset($_REQUEST['foo']) ? $_REQUEST['foo'] : NULL;
I would like to use a shorter version (or at least write the variable name
only once) to get the code more clean.
A solution could be to introduce a construct like:
echo ifset($_REQUEST['foo']);
The ifset() would do the same like the first example.
In the comment to a similar feature request
(http://bugs.php.net/bug.php?id=43236) it is recommended to use the new
ternary ?: operator like:
echo $_REQUEST['foo'] ?: NULL;
However that is triggering an E_NOTICE too at the moment.
I'm not sure if it would be a good idea, but maybe, as an alternative
solution to the ifset() construct, the ?: operator could be enhanced to
raise no E_NOTICE in such situations?
Of course the solution in the first example is running and okay. So in the
end we are talking about a "nice to have".
However, because I see a lot of places where this could make code shorter
and more readable I would really like to see such a function or
enhancement.
Test script:
---------------
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
echo $_REQUEST['foo'];
echo $_REQUEST['foo'] ?: NULL;
--
Edit bug report at http://bugs.php.net/bug.php?id=54738&edit=1
--
Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54738&r=trysnapshot52
Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54738&r=trysnapshot53
Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54738&r=trysnapshottrunk
Fixed in SVN: http://bugs.php.net/fix.php?id=54738&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54738&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=54738&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=54738&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=54738&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=54738&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=54738&r=support
Expected behavior: http://bugs.php.net/fix.php?id=54738&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=54738&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=54738&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=54738&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54738&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=54738&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=54738&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=54738&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=54738&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=54738&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=54738&r=mysqlcfg