MySQL server version for the right syntax to use near '1' at line 1

$at=$_POST['titles'];
$bc=$_POST['contents'];
$con=mysql_connect("localhost","amahoroe_gilbert","!amahoro!_16newgt");
mysql_select_db("amahoroe__enrgy2014",$con)or die(mysql_error());  
$query=mysql_query("insert into Infor_content (id,title,content) values ('NULL','$at','$bc')")or die(mysql_error());
$bd=mysql_query($query,$con)or die(mysql_error());
if($bd)
{
 echo "DATA SUBMITED";
 /*header("location:thank.php");	*/
}
else
{
   echo "DATA NOT SUBMITED";
}
mysql_close($con);
?>