Simple PDO update is not working - php

Question

The problem is on :soundid if I type manually soundid='soundidfromPOST' received from POST, the row is updated, but with soundid=:soundid ... nothing. Why?
PDO::ATTR_ERRMODE to PDO::ERRMODE_EXCEPTION and error_reporting enabled.
public function save($args) {
$userid = Controller::getUserConnection();
if ($userid) {
$soundid = $_POST['soundid'];
$track_title = $_POST['track_title'];
$track_artist = $_POST['track_artist'];
$track_album = $_POST['track_album'];
$track_genre = $_POST['track_genre'];
$track_description = $_POST['track_description'];
$played = 1;
$statement = $this->_db->prepare("UPDATE sounds SET title=:track_title, artist=:track_artist, album=:track_album, genre_id=:track_genre, description=:track_description, played=:played WHERE soundid=:soundid AND userid=:userid AND ip=:ip");
$statement->bindParam(':soundid',$soundid,PDO::PARAM_STR);
$statement->bindParam(':userid',$userid,PDO::PARAM_INT);
$statement->bindParam(':track_title',$track_title,PDO::PARAM_STR);
$statement->bindParam(':track_artist',$track_artist,PDO::PARAM_STR);
$statement->bindParam(':track_album',$track_album,PDO::PARAM_STR);
$statement->bindParam(':track_genre',$track_genre,PDO::PARAM_INT);
$statement->bindParam(':track_description',$track_description,PDO::PARAM_STR);
$statement->bindParam(':ip',$_SERVER['REMOTE_ADDR'],PDO::PARAM_STR);
$statement->bindParam(':played',$played,PDO::PARAM_INT);
$statement->execute();
echo 'saved!';
}
}

Answer 1

I would do the following to make it cleaner and because you don't need to bind everything explicitly (please note I didn't use all your variables):
Assign all your post data that you want to use in the query to an array:
$data = array(
'userid' => $userid,
'sounddid' => $_POST['soundid'],
'track_title' => $_POST['track_title'],
'track_artist' => $_POST['track_title'],
'ip' => $_SERVER['REMOTE_ADDR'],
);
Write you query:
$sth = $this->_db->prepare("
UPDATE sounds SET
title = :track_title,
artist = :track_artist
WHERE soundid = :soundid
AND userid = :userid
AND ip = :ip
");
Pass in your data array to be executed:
$result = $sth->execute($data);