Error Handling & Insert Data using PHP Script

form-action.php
/*
mysql_connect("localhost","root","") or die (mysql_error());
mysql_select_db("formexample") or die (mysql_error());


if(isset($_REQUEST['submit']))
{


$Fname = $_POST["Fname"];
$Lname = $_POST["Lname"];
$gender = $_POST["gender"];
$food = $_POST["food"];
$quote = $_POST["quote"];
$education = $_POST["education"];
$TofD = $_POST["TofD"];

if(empty($Fname))
{
$error="First Name cannot be empty";

}
else if (empty($Lname))
{
$error="Last Name cannot be empty";

}

else if (empty($gender))
{
$error="Gender cannot be empty";

}
else if (empty($food))
{
$error="Food cannot be empty";

}

else if (empty($quote))
{
$error="Quote cannot be empty";

}
else if (empty($education))
{
$error="Education cannot be empty";

}
else if (empty($TofD))
{
$error="Favorite time cannot be empty";

}


if($error==NULL)
{
$data="";
$data=implode(",",$food);

$query="insert into form values('','$Fname','$Lname','$gender','$data','$quote','$education','$TofD')";
$result=mysql_query($query);
if($result)
{
$succes = "Succesfuly added your information";
}

?>

}
else
{
?>

}

}

?>
*/


Form.php

/*

echo $err=$_REQUEST['err'];
?>

echo $succes=$_REQUEST['succes'];
?>

First Name:		Last Name:
Gender:	Male	Female
Please choose type of residence	Burger	Pizza	Chicken
Your comments:
Select a Level of Education:	Jr.High HighSchool College
Select your favorite time of day:	Morning Day Night

*/