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Date: Mon, 22 Aug 2011 10:00:11 +0200
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To: Mads Lie Jensen <mads@gartneriet.dk>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] is_a() triggers __autoload() in 5.3.7
From: hannes.magnusson@gmail.com (Hannes Magnusson)

On Mon, Aug 22, 2011 at 08:22, Mads Lie Jensen <mads@gartneriet.dk> wrote:
> On Mon, 22 Aug 2011 08:10:28 +0200, kalle@php.net (Kalle Sommer Nielsen)
> wrote:
>
>>> After upgrading to php 5.3.7, whenever I use is_a($object, 'ClassName')=
;
>>> the autoloader of classes is now called.
>>>
>>> This did not happen in earlier versions of php 5.3 that I used before.
>>> But I cannot find any =C2=A0mention of it anywhere, no open bugs for it=
, and
>>> nothing in the changelogs.
>>>
>>> Is it a bug or is it intentional that it has started behaving this way?
>>
>>I'm unable to reproduce your case in 5.3.4RC1, 5.3.7 and 5.3-svn:
>>http://pastie.org/2410070
>
> Ah, I now see that it only happens when trying to check something which
> is not actually an object:
>
> <?php
>
> function __autoload($class) {
> =C2=A0 =C2=A0 =C2=A0 =C2=A0echo "Would load: " . $class . PHP_EOL;
> }
>
> $var =3D "test";
> var_dump(is_a($var, 'B'));
>
> $obj =3D new Stdclass;
> var_dump(is_a($obj, 'C'));
>
> ?>
>
> But still, it did not happen in earlier phpversions.


I can reproduce that in 5.3-svn and 5.4-svn.

Please file a bug report for it, this should probably be fixed in 5.3.8 too=
.

-Hannes