Different Type Of Input Based From Their Position

How to create different types of input depends upon their position. For example the following data below. For every nominees with president and vice-president position display radio type of button and if senator position display check box.

I do the following way but does not work.

+----------------------------------------------------+
|candidatesid | studentsname        | position       |
+----------------------------------------------------+
|1            |Demnok Lannik        |SENATORS        |
|2            |Aurel Vlaicu         |SENATORS        |
|3            |Rizzrack             |SENATORS        |
|4            |Ymir                 |SENATORS        |
|5            |Raigor Stonehoof     |SENATORS        |
|6            |Kardel Sharpeye      |VICE-PRESIDENT  |
|7            |Purist Thunderwrath  |VICE-PRESIDENT  |
|8            |Razzil Darkbrew      |VICE-PRESIDENT  |
|9            |Aggron Stonebreak    |PRESIDENT       |
|10           |Rylai Crestfall      |PRESIDENT       |
+----------------------------------------------------+

RESULT

PRESIDENT
O Aggron Stonebreak
O Rylai Crestfall

VICE-PRESIDENT
O Razzil Darkbrew
O Purist Thunderwrath
O Kardel Sharpeye

VICE-PRESIDENT
[ ] Demnok Lannik
[ ] Aurel Vlaicu
[ ] Rizzrack
[ ] Ymir
[ ] Raigor Stonehoof

MY SOLUTION

  if ($row['position'] = PRESIDENT) {
    $data. = ' < div class = "radio" >
        < label > < input class = "p"
    type = "radio"
    name = "radio"
    value = "'.$row['studentsid'].'" > '.$row['
    s_name '].' < /label> < /div>';
}
elseif($row['position'] = VICE - PRESIDENT) {
    $data. = '<input type class="vp" type="radio" name="radio" value="'.$row['studentsid'].
    '" />'.$row['s_name'].
    '<br>';
}
elseif($row['position'] = SENATORS) {
    $data. = '<input class="single-checkbox" type="checkbox" name="vehicle" value="'.$row['studentsid'].
    '">'.$row['s_name'].
    '<br>';
} else {
    ///
}