From:
Operating system:
PHP version: 5.4.0RC6
Package: *General Issues
Bug Type: Feature/Change Request
Bug description:new function "udef", similar to isset or empty
Description:
------------
It's usually a good practice to develop with the highest error level to
eliminate all warnings and notices.
There are some cases where you know a variable or array index won't be
defined.
So in order to eliminate the notice you write something like this:
$value = isset($input['name']) ? $input['name'] : "";
I end up writing this a lot, especially with user input and templates. In
many
cases it's OK and intended the variable is undefined and the value is
NULL.
Another "solution" is to write this:
$value = &$input['name'];
But this only works when "&" is preceded by "=".
You could also write this:
$value = @$input['name'];
But this only prevents the error from displaying. It is sill reported by
error_get_last.
We need a simple function like isset that returns the value or NULL. It
could be
used like this:
$value = udef($input['name']);
This is possible now with a user defined function (code below). But it
would be
nice to have a construct like isset/empty that did this.
(Not shown in example, but perhaps it could take multiple arguments like
isset
and return the first non-NULL value it finds)
Test script:
---------------
function udef(&$var)
{
return $var;
}
$one = array();
print udef($one['one']);
print_r($one);
Expected result:
----------------
Array ( [one] => )
Actual result:
--------------
Array ( [one] => )
--
Edit bug report at https://bugs.php.net/bug.php?id=60906&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60906&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60906&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60906&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60906&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60906&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60906&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60906&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60906&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60906&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60906&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60906&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60906&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60906&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60906&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60906&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60906&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60906&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60906&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60906&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60906&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60906&r=mysqlcfg
