parameter is lost while looping with php

i still not understand, with this simple logic but still make me not get the parameters declared variable name $form then, the result of $form is

<input type="checkbox" id="ID_0">
<input type="checkbox" id="ID_0">
<input type="checkbox" id="ID_0">
<input type="checkbox" id="ID_0">

not as expected, like this

<input type="checkbox" id="ID_0">
<input type="checkbox" id="ID_1">
<input type="checkbox" id="ID_2">
<input type="checkbox" id="ID_3">

my simple code is like this

$data = array(); //contains example 9 data
$total_data = count($data);

$sql = "SELECT name from table";
$result = $_CONN->Execute($sql);
$total = $result->RecordCount();

if($total > 0){
    for($i=0;$i<$total_data;$i++){
        $dataID = "ID_".$i;
        while (!$result->EOF){
            $form .= '<input type="checkbox" id="'.$dataID.'" name="checkData[]" value="'.$result->fields["name"].'">'.$result->fields["name"];
            $result->MoveNext();
        }
    }
}else{
    echo "No data from Table";
}