php - functions not showing tables

Solution:

UPDATE 2

you might need do some changes:

function content_temp( $con ){
  if(isset($_GET['action'])){
    if($_GET['action'] == 'banlist'){
      echo " <div class='positiontable'>
        <table class='MYTABLE'>
          <thead>
            <tr CLASS='MYTABLE'>
              <th CLASS='MYTABLE' height=40 width=80>User</th>
              <th CLASS='MYTABLE' height=40 width=80>Time</th>
              <th CLASS='MYTABLE' height=40 width=180>Reason</th>
              <th CLASS='MYTABLE' height=40 width=80>Admin</th>
            </tr>
          </thead>
          <tbody>";
          $query ="SELECT * FROM `Banovi` LIMIT 5"; 
          $result = mysqli_query($con,$query);
          while( $row = mysqli_fetch_array($result,MYSQLI_ASSOC) ){

            $name = $row['Ime'];
            $time = $row['Vreme'];
            $reason = $row['Razlog'];
            $admin = $row['Admin'];
            echo "
              <tr CLASS='MYTABLE'>
                <td CLASS='MYTABLE' height=40 width=80>$name</td>
                <td CLASS='MYTABLE' height=40 width=80>$time</td>
                <td CLASS='MYTABLE' height=40 width=180>$reason</td>
                <td CLASS='MYTABLE' height=40 width=80>$admin</td>
              </tr>";
          }?>
        </tbody>
      </table><?php           
    }
  }
}
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UPDATE 1

Incontent_temp( $con ), the$con should be created and passed upon function call:

$con = mysqli_connect("localhost","my_user","my_password","my_database");
content_temp( $con );
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