Add radio button option to table on sql

[guest]

im trying to add an option of radio buttons to mysql table this is what i have so far but it says theres and error on the first like of

else if(NOT NULL($freshman)){
$grade="freshman";
}else{
 if(NOT NULL($sophomore)){
$grade="sophomore";
}else{
 if(NOT NULL($junior)){
$grade="junior";
}else{
 if(NOT NULL($senior)){
$grade="senior";
}
}

and my html is

  <label> 
                        <input name="RadioGroup1" value="<?php echo "$freshman"; ?>" type="radio"> 
                        Freshman</label> 
                        <label> 
                        <input name="RadioGroup1" value="<?php echo "$sophomore"; ?>" type="radio"> 
                        Sophomore</label> 
                        <label> 
                        <input name="RadioGroup1" value="<?php echo "$junior"; ?>" type="radio"> 
                        Junior</label> 
                        <label> 
                        <input name="RadioGroup1" value="<?php echo "$senior"; ?>" type="radio"> 
                        Senior</label> 

the script to add it to the table is

$sql =mysql_query("INSERT INTO loginwa_user ( `userid` , `username` , `fname` , `lname` , `passwd` , `email` , `fcode` , `nl` , `adddate`, `ip` , `grade`)
        VALUES ( '', '$user_name', '$first_name', '$last_name', '$pass', '$reg_email', '$code', '$nl',NOW(), '$ip' , '$grade')"); 

[sabu]

Why did you go and start your whole php thing with an "else"? You do know that 'else' is not a beginning statement. Imaging walking up to someone and saying "or else!" with no alternative in front of it.

if($freshman == 1)){
$grade="freshman";
}
 if($sophomore == 1){
$grade="sophomore";
}
 if($junior == 1){
$grade="junior";
}
 if($senior == 1){
$grade="senior";
}
if (empty($grade)) {
 die("Oi, you didn't pick a grade!");
}

[guest]

IDK im new to all this 🙂 but thanks for the help