From:
Operating system: Windows XP SP3
PHP version: 5.3.3
Package: *General Issues
Bug Type: Bug
Bug description:return by reference with ternary operator causes notice "Only
variable..."
Description:
------------
I don't know if it's a bug, or that's how it should be, but it would be
logical to assume that a ternary operator is equal to an IF block:
return $a ? $b : $c;
// ==
if ($a) return $b; else return $c;
I believe that's how it is in C. However when returning a reference, the
first version produces a notice:
"Notice: Only variable references should be returned by reference"
It's hard to tell if this is normal behaviour or not, but it's confusing.
If this is normal functionality, then I think this should be in
documentation, at least in a form of a comment.
Test script:
---------------
class test {
private $a = array();
private $b = array();
function &getA($key) {
return $key > 0 ? $this->a[$key] : $this->b[$key];
// the following line gives no notice
// if ($key > 0) return $this->a[$key]; else return
$this->b[$key];
}
}
$a = new test;
$b = &$a->getA('1');
Expected result:
----------------
Notice: Undefined index: 1 in - on line 9
Notice: Only variable references should be returned by reference in - on
line 9
Actual result:
--------------
Notice: Undefined index: 1 in - on line 9
--
Edit bug report at http://bugs.php.net/bug.php?id=52825&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=52825&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=52825&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=52825&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=52825&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=52825&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=52825&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=52825&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=52825&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=52825&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=52825&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=52825&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=52825&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=52825&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=52825&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52825&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=52825&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=52825&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=52825&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=52825&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=52825&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=52825&r=mysqlcfg
