isset surprise

[rw]

In php 5.0.3 i found that
$s="a";
if(isset($s->prop))
echo "surprise";

In previous php it was false;
Is it bug?
--
Rob Was

[Andy Hassall]

Re: isset surprise

On Wed, 26 Jan 2005 21:20:01 +0100, rw <rwas8@gazeta.p l> wrote:
[color=blue]
>In php 5.0.3 i found that
>$s="a";
>if(isset($s->prop))
>echo "surprise";
>
>In previous php it was false;
>Is it bug?[/color]

Looks like one, it's certainly inconsistent. Consider:

andyh@server:~/public_html$ cat test2.php
<?php
$s="a";
var_dump($s->prop);
echo isset($s->prop) ? "surprise1\ n" : "no surprise1\n";

$x = NULL;
var_dump($x);
echo isset($x) ? "surprise2\ n" : "no surprise2\n";

$y = $s->prop;
var_dump($y);
echo isset($y) ? "surprise3\ n" : "no surprise3\n";
?>
andyh@server:~/public_html$ php -q test2.php

Notice: Trying to get property of non-object in
/home/andyh/public_html/test2.php on line 3
NULL
surprise1
NULL
no surprise2

Notice: Trying to get property of non-object in
/home/andyh/public_html/test2.php on line 10
NULL
no surprise3

--
Andy Hassall / <andy@andyh.co. uk> / <http://www.andyh.co.uk >
<http://www.andyhsoftwa re.co.uk/space> Space: disk usage analysis tool

[Chung Leong]

Re: isset surprise

"rw" <rwas8@gazeta.p l> wrote in message
news:ct8uav$4hr $1@nemesis.news .tpi.pl...[color=blue]
> In php 5.0.3 i found that
> $s="a";
> if(isset($s->prop))
> echo "surprise";
>
> In previous php it was false;
> Is it bug?
> --
> Rob Was[/color]

Hmmm...interest ing. Seems to suggest that there's an alternate universe of
sort existing within the string.

empty() exhibits the same effect. Somehow "$s->prop" is being translated to
"$s{0}" inside isset(). If the string begins with "0", then isset() returns
false.