ช่วยดูให้หน่อยครับ Warning: Invalid argument supplied for foreach()

$Connect = mysql_connect("localhost","root","1234");
$db = mysql_select_db("chaiket");
function selectDetails(){
		$Sql = "select * from  admin";
		$Query = mysql_query($Sql);
		$ResultsArray = array();
		while($Results = mysql_fetch_array($Query)){
			array_push($ResultsArray,$Results);
		}
		return $ReasultsArrsy;
	}
$record = selectDetails();
foreach($record as $result){
?>
<tr>
	<td><?php echo  $result[username];?></td>
</tr>