From:
Operating system: Linux
PHP version: 5.3.2
Package: Reflection related
Bug Type: Bug
Bug description:Reflectionfunction reports invalid number of arguments for
function aliases
Description:
------------
When defining a function alias internally in PHP, PHP_FALIAS requires an
arginfo
as the third parameter.
For example gzwrite() is internally represented as a function alias to
fwrite():
PHP_FALIAS(gzwrite, fwrite, NULL)
Here however the argument info is not provided. This leads to the fact that
the
reflection api can't extract the parameters of gzwrite.
Why does an FALIAS require an arginfo? Couldn't it just take the argument
info
of the alias function if the arginfo is null? The impact is that you can't
determine the required arguments from the gzwrite function. I hacked the
code
and added the arginfo stuff and the reflection api immediatly noticed that
gzwrite requires 2 parameters. We are doing massive static code analysis
and our
code analysis returns bogus results due to the fact that the reflection api
can't report the real arguments of a function.
Test script:
---------------
<?php
foreach (array("gzwrite","fwrite") as $function)
{
$refl=new ReflectionFunction($function);
var_dump($refl->getNumberOfRequiredParameters());
var_dump($refl->getNumberOfParameters());
}
?>
Expected result:
----------------
int(2)
int(3)
int(2)
int(3)
Actual result:
--------------
int(0)
int(0)
int(2)
int(3)
--
Edit bug report at http://bugs.php.net/bug.php?id=52183&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=52183&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=52183&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=52183&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=52183&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=52183&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=52183&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=52183&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=52183&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=52183&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=52183&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=52183&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=52183&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=52183&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=52183&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52183&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=52183&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=52183&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=52183&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=52183&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=52183&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=52183&r=mysqlcfg
