[Fwd: fetch() returning false for empty datasets]

Forwarding here.
Maybe it got lost inbetween the spam attacks, maybe its just not
interesting but lets open up the topic to a larger audience :)

-------- Original Message --------
Subject: fetch() returning false for empty datasets
Date: Mon, 05 Jun 2006 11:41:12 +0200
From: lsmith@php.net (Lukas Smith)
To: pecl-dev@lists.php.net
Newsgroups: php.pecl.dev

Hi,

the following script outputs "false" (at least on whatever pdo version
is bundled with 5.1.4):

$sql = 'SELECT 1 FROM dual WHERE 1=0';
$stmt = $dbh->query($sql);
var_dump($stmt->fetch(PDO::FETCH_ASSOC));

all other RDBMS extension we have return null in this case, which seems
to be the right thing too ..

I have to agree here. NULL defines this situation perfectly, false
being used for errors (strict false, === FALSE).

--Pierre