PHP Variable Variables - php

Question

I am writing this comment class:
class Comment {
public $id;
public $post_id;
public $name;
public $email;
public $website;
public $body;
public $date;
public $ip_address;
public $status;
function __construct($id) {
global $db;
$resc = $db->query("SELECT * FROM blog_comments WHERE id='$id' LIMIT 1");
while($row = $db->fetch_assoc($resc)) {
while ($comment = current($row)) {
$key = key($row);
$this->$key = $comment{$key};
next($row);
}
}
}
}
Here is what the query inside the constructor will return when run in the database:
query results http://17webshop.com/wp-content/uploads/2009/10/Picture-2.png
But when I run it, this is what print_r(new Comment(1)); spits out:
Comment Object
(
[id] => 1
[post_id] => 1
[name] => J
[email] => j
[website] => h
[body] => b
[date] => 1
[ip_address] => :
[status] => 1
)
Any ideas why I'm only getting the first character of each field?
Thanks.

Answer 1

You want
$comment[$key]
$comment{$key} will give you the nth character of a string. Since $key itself is a string, PHP converts that to an integer 0 and you get the first char.

Answer 2

current/next is painful, and I'm not sure what's with the {} dereferencing.
Why not just:
$resc = $db->query("SELECT * FROM blog_comments WHERE id='$id' LIMIT 1");
while($row = $db->fetch_assoc($resc)) {
foreach($row as $key=>$value){
$this->$key = $value;
}
}

Answer 3

I think you need to change this line:
$this->$key = $comment{$key};
with:
$this->$key = $comment[$key];