php date to mysql datetime record update

Hello,

I try to update in my table the mysql datetime field but no luck.

i managed to convert my 26/05/2011 php date format to 2011-05-26 00:00:00 with:

$time = strtotime( @$_REQUEST['from'] );
$from = date("Y-m-d H:i:s", $time);
..... and $to as well

but cannot update the field 'from' and 'to' in my db:

$query = "UPDATE `{$TABLE_PREFIX}accoms` SET
title = '".mysql_escape( $_REQUEST['title'] )."',
type = '".mysql_escape( $_REQUEST['type'] )."',
category = '".mysql_escape( $_REQUEST['category'] )."',
from = '".mysql_escape($from)."',
to = '".mysql_escape($to)."',
desc = '".mysql_escape( $_REQUEST['desc'] )."',
info = '".mysql_escape( $_REQUEST['info'] )."',

updatedByUserNum = '".mysql_escape( $CURRENT_USER['num'] )."',
updatedDate = NOW()
WHERE createdByUserNum = '".mysql_escape( $CURRENT_USER['num'] )."'";
mysql_query($query) or die("MySQL Error:<br/>\n". htmlspecialchars(mysql_error()) . "\n");

for date update getting error:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'from = '2011-01-04 00:00:00', to = '2011-01-10 00:00' at line 6

Please advise!
Karls