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Date: Fri, 30 Sep 2016 12:57:45 +0200
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Subject: RE: [PHP-DEV] php short circuit bug?
From: php-mailing-list@lool.fr ("Pascal KISSIAN")

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Sorry,

=20

I did not saw that there were an  =3D=3D on the right side,  and thought =
that It
was an assignement=85.

Thanks a lot

=20

Best regards,

Pascal KISSIAN

=20

De : Thomas Punt [mailto:tpunt@hotmail.co.uk]=20
Envoy=E9 : vendredi 30 septembre 2016 12:51
=C0 : Pascal KISSIAN <php-mailing-list@lool.fr>
Objet : Re: [PHP-DEV] php short circuit bug?

=20

Hi!

=20

The warning is being emitted from the IF statement body, where you're =
not
actually performing an assignment, but a comparison instead:

=20

$t_aa["bb"]=3D=3D"cc";

=20

-Tom

=20

  _____ =20

From: Pascal KISSIAN <php-mailing-list@lool.fr
<mailto:php-mailing-list@lool.fr> >
Sent: 30 September 2016 11:45
To: internals@lists.php.net <mailto:internals@lists.php.net>=20
Subject: [PHP-DEV] php short circuit bug?=20

=20

Hi everybody,

=20

Perhaps am I making a mistake, but the following code fragment:

=20

<?php

=20

$t_aa  =3D  array();

if ( !isset($t_aa["bb"]) || ($t_aa["bb"]=3D=3D"") ) =
$t_aa["bb"]=3D=3D"cc";

=20

?>

=20

Emits  the following notice:

PHP Notice:  Undefined index: bb in test.php on line 4

=20

The php documentation :
http://php.net/manual/en/language.operators.logical.php=20


 <http://php.net/manual/en/language.operators.logical.php> PHP: Logical
Operators - Manual

php.net

Logical Operators; Example Name Result $a and $b: And: TRUE if both $a =
and
$b are TRUE. $a or $b: Or: TRUE if either $a or $b is TRUE. $a xor $b: =
Xor:
TRUE if either ...




states in exemple 1 that  short circuit is implemented.

=20

In my example as  !isset($t_aa["bb"]) true,  then the second expression
($t_aa["bb"]=3D=3D"")should not be evaluated!

=20

Is it a php bug? Or am i missing something?

=20

Cheers,

Pascal KISSIAN


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