新手求教

<?php
$con = mysql_connect("localhost","","");
if(!$con)
{
die('could not connect:'.mysql_error());
}
else{
echo('working');
echo "<br>";
}
mysql_select_db("test",$con);
mysql_query("UPADTE human SET Age=36 WHERE FirstName='Peter' AND LastName='Giffin'");
mysql_close($con);
?>
请问update 代码那有错误 、为什么就是无法改变年龄