mysql_fetch_object with specific class - php

Question

I developed an object-oriented guestbook and I have my Class GuestBookEntry:
class GuestBookEntry {
protected $id;
protected $entryDate;
protected $authorName;
protected $authorMail;
protected $entryText;
// getters, setters and specific functions are omitted
}
I also have a mysql table with the same names as columns.
Well, when I fetch guestbook entries, it seems to work, but it only displays the ID and the Date, which where returned by getters. The other things won't return to the template.
The code looks like this:
public function showEntries() {
$query = mysql_query('SELECT * FROM dng_entries ORDER BY id DESC');
while($entry = #mysql_fetch_object($query, 'GuestBookEntry')) {
if(empty($entry)) {
echo '<font color="white">Keine Einträge vorhanden...</font>';
} else {
var_dump($entry);
echo '<table class="table table-bordered entryfield" align="right">
<thead>
<tr>
<td rowspan="2">'.$entry->getId().'</td>
<td width="20%">Datum:</td>
<td>Name:</td>
<td>Email:</td>
</tr>
<tr>
<td>'.$entry->getEntryDate().'</td>
<td>'.$entry->getAuthorName().'</td>
<td>'.$entry->getAuthorMail().'</td>
</thead>
<tbody>
<tr>
<td width="10%" valign="middle">Eintrag:</td>
<th colspan="3" valign="top" height="100px">'.$entry->getEntryText().'</td>
</tr>
</tbody>
</table>';
}
}
}
Here's a var_dump of e.g. object:
object(GuestBookEntry)#2 (5) { ["id":protected]=> string(1) "2" ["entryDate":protected]=> int(1344696811) ["authorName":protected]=> NULL ["authorMail":protected]=> NULL ["entryText":protected]=> NULL }
update: well here is the rest of GuestBookEntry class:
public function __construct($authorName, $authorMail, $entryText) {
$this->authorName = $authorName;
$this->authorMail = $authorMail;
$this->entryDate = time();
$this->entryText = $entryText;
}
public function getId() {
return $this->id;
}
public function getAuthorName() {
return (String) $this->authorName;
}
public function getAuthorMail() {
return (String) $this->authorMail;
}
public function getEntryDate() {
return date('d.n.Y', $this->entryDate);
}
public function getEntryText() {
return $this->entryText;
}
public function setAuthorName($authorName) {
$this->authorName=$authorName;
}
public function setAuthorMail($authorMail) {
$this->authorMail=$authorMail;
}
public function setEntryDate($entryDate) {
$this->entryDate=$entryDate;
}
public function setEntryText($entryText) {
$this->entryText=$entryText;
}

Answer 1

Your problem is case sensitivity. MySQL column names don't deal with camel case, but PHP see's a difference between properties based on case such as $entryDate and $entrydate. Stick to lowercase with underscores if you need visual seperation. The reason why id works is it's all lower case.
I think if you simply lowercase all your property names that are supposed map to table columns everything will work.
BTW... The camel case issue with column names may vary based on the OS running the sql server.