Was für eine Fehlermeldung kommt den genau? Die Fehlermeldung wird dir nicht nur schmeißen MySQLi Query failed, sondern auch die Begründung hierzu
PHP Code:
if(isset($_POST['save'])){
$utmt = $db->prepare('UPDATE `account` SET
`prename` = ?,
`name` = ?,
`psn` = ?,
`xboxlive` = ?,
`car1` = ?,
`car2` = ?,
`car3` = ?,
`car4` = ?,
`car5` = ?,
`car6` = ?,
`car7` = ?,
`car8` = ?,
`car9` = ?,
`car10` = ?,
`buzzard` = ?,
`helicopter` = ?,
`airplanes` = ?,
`tanks` = ?,
`arpartment` = ?,
`favactivity` = ?,
`favjob` = ?,
`skype` = ?
WHERE `username` = ?');
$utmt->execute(array('sssssssssssssssssssssss',
$_POST['prename'],
$_POST['name'],
$_POST['psn'],
$_POST['xboxlive'],
$_POST['car1'],
$_POST['car2'],
$_POST['car3'],
$_POST['car4'],
$_POST['car5'],
$_POST['car6'],
$_POST['car7'],
$_POST['car8'],
$_POST['car9'],
$_POST['car10'],
$_POST['buzzard'],
$_POST['helicopter'],
$_POST['airplanes'],
$_POST['tanks'],
$_POST['arpartment'],
$_POST['favactivity'],
$_POST['favjob'],
$_POST['skype'],
$_POST['username']));
$utmt = null;
}
Probier das mal allerdings ohne Gewähr!