Mysql Data for month and year

I have a datepicker where the selected date will post the data by day, month, and year. I have the "by day" working, but can't seem to get the month and year to click... here is the code that works for the day.

    <?php  
$choice = (isset($_POST['choice'])) ? date("Y-m-d",strtotime($_POST['choice'])) : date("Y-m-d"); 
$con = mysql_connect("localho开发者_如何学Cst","root","xxxxxxxxxx");  
if (!$con)  {  
die('Could not connect: ' . mysql_error());  
}  
mysql_select_db("inverters", $con);  

$sql = "SELECT sum(power) AS choice FROM feed WHERE date = '".$choice."'"; 
$res = mysql_query($sql) or die('sql='.$sql."\n".mysql_error()); 
$row = mysql_fetch_assoc($res); 
echo $row['choice'].'<br />';  
?>

Thanks,

Alan

Not sure if I understood what you want to do, but if you want to display data for a given month, the following sql query should work:

$sql = 'SELECT . . . WHERE month(date) = [month picked] AND year(date) = [year picked]';

Hope this helps.