fixed server-side authentication issues.

poll/index.php

@@ -88,7 +88,6 @@ if (!isset($_POST['option']) && !isset($_COOKIE['form_submitted'])) {
 <?php
 function updateDb($option)
 {
-    // Connect to the DB
     $conn = mysqli_connect(HOST, USER, PASS, DB);
 
     // Write a DB query
@@ -97,7 +96,7 @@ function updateDb($option)
     // Run DB query
     $results = mysqli_query($conn, $sql);
     if (mysqli_num_rows($results) == 0) {
-        $sql = "INSERT INTO poll_results (option, count) VALUES ('$option', 1)";
+        $sql = "INSERT INTO poll_results (option, count) VALUES (' . $option . ', 1)";
         $results = mysqli_query($conn, $sql);
     } else {
         $sql = 'UPDATE poll_results SET count = count + 1 WHERE option = "' . $option . '";';