function adminModules() - CORRECT SYNTAX / WORKING!!

function adminModules() {

  //protect module from users not logged in
  protect2();

  // variables for query below
  // gets username of user logged in...
  $username = $_SESSION['username'];

  // sets $author to username that is logged in
  $author = $username;

  // gets current date
  $current_date = date('F d, Y');


  // setup query to get get users admin level
  $getAdminLevel = dbConnect()->prepare("SELECT level FROM users WHERE username = :username");
  // sets :username parameter to the $_SESSION username!
  $getAdminLevel->bindParam(':username', $username);
  // Execute the query
  $getAdminLevel->execute();
  // define admin level of user logged in (fetchs level column from user that is logged in & sets it as $adminLevel)
  $adminLevel = $getAdminLevel->fetchColumn();


  // if user is not an admin, exit!
  if ($adminLevel == 0) {
    exit();

  // closes if($adminLevel == 0) statement
  // if user is not level 0 and is admin level, continue...
  } else {

    // display module for admin to create post (level 1 module)
    echo '

      <div class="container-fluid">

        <div class="row">

    <!-- stops echo that inserts div.container-fluid && div.row -->
    ';


          // if admin level == 1 : put in one lg-col-12 row
          // if admin level == 2 : put in two lg-col-6 row
          // if admin level == 3 : put in three lg-col-4 row

          // if user is level 1 admin : put in one lg-col-12 in row
          if($adminLevel == 1) {

          echo '

          <div class="col-lg-12">

          <!-- closes echo tag that inserts div.col-lg-12 into div.row -->
          ';

          // closes if($adminLevel == 1) statement
          }

          // if user is level 2 admin : make col-lg-6
          if($adminLevel == 2) {

          echo '

          <div class="col-lg-6">

          <!-- closes echo tag that inserts div.col-lg-6 into div.row -->
          ';

          // closes if($adminLevel == 2) statement
          }

          // if user is level 3 admin : make col-lg-4
          if($adminLevel == 3) {

          echo '

          <div class="col-lg-4">

          <!-- closes echo tag that inserts div.col-lg-4 into div.row -->
          ';

          // closes if($adminLevel == 3) statement
          }

            ///////////////////////
            // start lines here //
            //                  //
            //                  //
            //                  //
            // start lines here //
            /////////////////////

            echo '

            <!-- heading here -->
            <h3>Admin Level 1 panel</h3>
            <p>Use this module to create new posts</p>

            <!-- button for minimizing function -->
            <button class="btn btn-default hideshow">show/hide</button>

            <div class="content">

              <form method="post" enctype="multipart/form-data" class="admin_module">

                <input class="input2" type="text" name="title" placeholder="Headline" required /><br />

                <input class="input2" type="text" name="date" value="' .$current_date. '" readonly /><br />
                <input class="input2" type="text" name="author" value="' .$author. '" readonly /><br />

                <div class="input2">

                  <p>Select image to upload:</p>
                  <input style="padding:3px;" type="file" name="image" id="image" />

                <!-- closes div.input2 for upload image "input"-->
                </div>

                <textarea class="ta-summary input2" type="text" name="summary" placeholder="Summary" required></textarea><br />

                <button class="btn btn-default input2" type="submit" name="submit">Submit Post</button>

              <!-- closes form -->
              </form>

            <!-- closes echo that contains heading and form for level 1 module -->
            ';

            // checks to make sure image is valid && checks form for error(s)
            include 'includes/uploadPost.php';

            echo '

            <!-- closes div.content -->
            </div>

          <!-- closes div.col-lg-? -->
          </div>

            <!-- closes echo that contains closing tags for div.col-lg-? && div.content -->
            ';









            /*
            THAT IS ALL FOR ADMIN LEVEL 1 PANEL
            */








          // if user is level 2 or greater...
          if($adminLevel > 1) {

            // if user is level 2 : use col-lg-6
            // if user is level 3 : use col-lg-4

            // if user is level 2
            if($adminLevel == 2) {

              // use col-lg-6
              echo '
              <div class="col-lg-6">
              ';

            // closing tag for if($adminLevel == 2) statement
            }

            // if user is level 3
            if($adminLevel == 3) {

              // use col-lg-4
              echo '
              <div class="col-lg-4">
              ';

            // closing tag for if($adminLevel == 3) statement
            }















            // start query to fetch all users that are not admins!
            $fetchNonAdmins = dbConnect()->prepare("SELECT * FROM users WHERE level < 1");
            // execute the query
            $fetchNonAdmins->execute();
            // select all columns from query
            $nonAdmins = $fetchNonAdmins->fetchAll();


            // echo users that aren't admins...
            echo '

            <!-- heading here -->
            <h3>Admin Level 2 Panel</h3>
            <p>Use this module to adjust regular user levels</p>


            <!-- button for minimize action in js.js -->
            <button class="btn btn-default hideshow2">show/hide</button>


            <div class="content2">

              <div class="admin_module">

                <table class="nonAdmins" border="1">

                  <tr>


                    <!-- header on the table to show which column is which -->
                    <td class="table_header">ID</td>
                    <td class="table_header">Username</td>
                    <td class="table_header">Level 1</td>
                    <td class="table_header">Level 2</td>


                  <!-- 1st closing tag for tr -->
                  </tr>

            ';

                // start to fetch users that are not admins
                foreach($nonAdmins as $row) {


                  // display content of table below (each users id, username, etc...)
                  echo '

                  <tr>

                    <!-- displays each users id from database -->
                    <td class="table_content">' .$row['id']. '</td>

                    <!-- displays each users username from database -->
                    <td class="table_content">' .$row['username']. '</td>


                    <td class="table_content">

                      <!-- displays button where it will change X user to level 1 admin level -->
                      <form method="post" class="table_content_form">

                        <button class="btn btn-default" type="submit" name="changeLevel">Change to level 1</button>
                        <input type="hidden" name="user_id" value="' .$row['id']. '" />
                        <input type="hidden" name="user_level" value="1" />

                      <!-- closing tag to form where it will displays button to update users level to "1" -->
                      </form>

                    <!-- closing tag to td that inserts form where button is displayed to update users to level 1 -->
                    </td>


                    <td class="table_content">

                      <form method="post" class="table_content_form">

                        <button class="btn btn-default" type="submit" name="changeLevel">Change to level 2</button>
                        <input type="hidden" name="user_id" value="' .$row['id']. '" />
                        <input type="hidden" name="user_level" value="2" />

                      <!-- closing tag to form -->
                      </form>

                    <!-- closing tag to td that contains button to change user level to 2 -->
                    </td>


                  </tr>

                  <!-- closing tag for echo that displays details of each user that is not an admin -->
                  ';


                // closing tag for foreach($nonAdmins as $row) statement
                }

            echo '

                <!-- closing tag for table -->
                </table>

            <!-- closing tag for echo that inserts closing tag for table -->
            ';


            // if user hits a change level 1/2 button
            if(isset($_POST['changeLevel'])) {


              // set variables for query below
              $userid = $_POST['user_id'];
              $newLevel = $_POST['user_level'];

              // update users new level in database
              $updateLevel = dbConnect()->prepare("UPDATE users SET level = :level WHERE id = :id");
              // bind some parameters
              $updateLevel->bindParam(':level', $newLevel);
              $updateLevel->bindParam(':id', $userid);
              // execute query
              $updateLevel->execute();

              // echo success messsage & redirect??
              echo '<p class="success">user with ID#' .$userid. ' has been updated to level ' .$newLevel. '! <a href="index.php">refresh</a> to update table(s)...</p>';


            // closing tag for if(isset($_POST['changeLevel'])) statement
            }


            echo '

              <!-- closing tag for div.admin_module -->
              </div>

            <!-- closing tag for div.content2 -->
            </div>

              <!-- closing tag for col-lg-> -->
              </div>

            <!-- closing tag for echo to insert closing tag for col-lg-? -->
            ';

          // closing tag for if($adminLevel > 1) statement
          }





          /* DONE WITH ADMIN LEVEL 2 PANEL HERE */
          /* DONE WITH ADMIN LEVEL 2 PANEL HERE */
          /* DONE WITH ADMIN LEVEL 2 PANEL HERE */




          // if users level is greater then 2
          if($adminLevel > 2) {

            echo '

            <div class="col-lg-4">


              <!-- heading here-->
              <h3>Admin Level 3 Panel</h3>
              <p>Use this module to demote admins that are at least level 2</p>


              <!-- button to minimize module -->
              <button class="btn btn-default hideshow3">show/hide</button>


              <div class="content3">

                <div class="admin_module">


                  <!-- content here -->


            ';


                  // setup query to get users that are level 2
                  $getLevel2Admins = dbConnect()->prepare("SELECT * FROM users WHERE LEVEL = 2");
                  $getLevel2Admins->execute();
                  $levelTwoAdmins = $getLevel2Admins->fetchAll();


                  // content below this line!!
                  echo '

                  <!-- this shows the top "titles" for the table -->
                  <table class="nonAdmins" border="1">

                    <tr>

                      <td class="table_header">ID</td>
                      <td class="table_header">Username</td>
                      <td class="table_header">Level 1</td>
                      <td class="table_header">Level 0</td>

                    <!-- closes tr tag -->
                    </tr>

                  <!-- closes echo tag -->
                  ';


                    // for each level 2 user as $row2 variable
                    foreach($levelTwoAdmins as $row2) {

                      echo '

                        <tr>

                          <!-- display each users id next to their name from database -->
                          <td class="table_content">' .$row2['id']. '</td>
                          <!-- display each users username -->
                          <td class="table_content">' .$row2['username']. '</td>


                          <td class="table_content">

                            <form method="post" class="table_content_form">


                              <!-- button that demotes selected users level down to 1 -->
                              <button class="btn btn-default" type="submit" name="demoteLevel">Demote to level 1</button>

                              <input type="hidden" name="user_id2" value="' .$row2['id']. '" />
                              <input type="hidden" name="user_level2" value="1" />


                            <!-- closes form -->
                            </form>

                          <!-- closing tag for td -->
                          </td>


                          <td class="table_content">

                            <form method="post" class="table_content_form">


                              <!-- button that demotes selected user to level 0 -->
                              <button class="btn btn-default" type="submit" name="demoteLevel">Demote to level 0</button>

                              <input type="hidden" name="user_id2" value=" '.$row2['id'].' " />
                              <input type="hidden" name="user_level2" value="0" />


                            <!-- closes form -->
                            </form>

                          <!-- closing td tag -->
                          </td>


                        <!-- closes tr tag that contains details of each user that is level 2 -->
                        </tr>

                      <!-- closes echo tag -->
                      ';

                    // closes foreach($levelTwoAdmins as $row2) statement
                    }


                    // if user hits demote level button
                    if(isset($_POST['demoteLevel'])) {


                      // set variables
                      $userid2 = $_POST['user_id2'];
                      $newLevel2 = $_POST['user_level2'];

                      // setup query to update user in that row to level accordingly
                      $demoteLevel = dbConnect()->prepare("UPDATE users SET level = :level2 WHERE id = :id2");
                      // bind parameters
                      $demoteLevel->bindParam(':id2', $userid2);
                      $demoteLevel->bindParam(':level2', $newLevel2);
                      // execute query
                      $demoteLevel->execute();

                      // echo success message and redirect...
                      echo '<p class="success">user with ID#' .$userid2. ' has been demoted to level ' .$newLevel2. '! <a href="index.php">Refresh</a> to update table...</p>';


                    // closing tag for if(isset($_POST['demoteLevel'])) statement
                    }



                  echo '
                  <!-- closes table -->
                  </table>


                  <!-- closes echo tag that contains content!! -->
                  ';


            echo '


                <!-- closes div.admin_module -->
                </div>

              <!-- closes div.content3 -->
              </div>


            <!-- closes div.col-lg-4 -->
            </div>

            <!-- closing tag for echo that displays admin level 3 panel -->
            ';

          // closing bracket for if($adminLevel > 2) statement
          }


    echo '

        <!-- closes div.row -->
        </div>

      <!-- closes div.container-fluid -->
      </div>

    <!-- closes echo tag that closes div.row && div.container-fluid -->
    ';

  // closes else tag directly below if($adminLevel == 0) statement
  // that determines what to do if user IS ADMIN!
  }


  // closes adminModule function
}