How do I show a certain shared folder to a certain user in php mysql?

This is the new code that fixes :

<?php 
$active3="active";
include "head.php"; 
include "header.php"; 
include "aside.php"; 

? >

<div class="content-wrapper"><!-- Content Wrapper. Contains page content -->
    <section class="content-header"><!-- Content Header (Page header) -->
        <h1><i class="fa fa-globe"></i> Archivos Compartidos Conmigo</h1>
        <ol class="breadcrumb">
            <li><a href="home.php"><i class="fa fa-dashboard"></i> Home</a></li>
            <li class="active">Compartidos conmigo</li>
        </ol>
    </section>
    <section class="content"><!-- Main content -->
        <div class="row"><!-- Small boxes (Stat box) -->
            <div class="col-xs-12">
            <?php
                $user=$_SESSION["user_id"];
                $files = mysqli_query($con,"select * from permision where user_id=".$user);

                $count = mysqli_num_rows($files);

                while ($r=mysqli_fetch_array($files)) {
                    $id=$r['id'];
                }
            ?>
                <?php if(count($files)>0):?>
                <div class="box">
                    <div class="box-header"></div> <!-- /.box-header -->
                    <div class="box-body table-responsive no-padding">
                        <table class="table table-hover">
                            <tbody>
                                <tr>
                                    <th>Archivo</th>
                                    <th>Descripción</th>
                                    <th>Fecha</th>
                                </tr>
                                <?php foreach($files as $fx):

                                    $fx = mysqli_query($con,"select * from permision where id=$id");
                                    while ($rows=mysqli_fetch_array($fx)) {
                                        $file_id=$rows['file_id'];
                                    }

                                    $file = mysqli_query($con,"select * from file where id=$file_id");
                                    while ($row=mysqli_fetch_array($file)) {
                                        $file_is_folder=$row['is_folder'];
                                        $file_filename=$row['filename'];
                                        $file_code=$row['code'];
                                        $file_description=$row['description'];
                                        $file_created_at=$row['created_at'];
                                   }

                                   // echo var_dump($file);
                                ?>
                                <tr>
                                    <td>    
                                        <?php if($file_is_folder):?>
                                        <a href="myfiles.php?folder=<?php echo $file_code;?>">
                                            <i class="fa fa-folder"></i>
                                        <?php else:?>
                                        <a href="file.php?code=<?php echo $file_code;?>">

";                 }                 // I check if it's audio                 elseif ($ ftype [1] == "mp3" || $ ftype [1] == "wav" || $ ftype [1] == "wma" || $ ftype [1] == "ogg" || $ ftype [1] == "mp4") {                     threw out "";                 }                 // comrpuebo if they are zip, rar or others                 elseif ($ ftype [1] == "zip" || $ ftype [1] == "rar" || $ ftype [1] == "tgz" || $ ftype [1] == "tar") {                     threw out "";                 }                 // I check if it's a code file                 elseif ($ ftype [1] == "php" || $ ftype [1] == "php3" || $ ftype [1] == "html" || $ ftype [1] == "css" || $ ftype [1] == "py" || $ ftype [1] == "java" || $ ftype [1] == "js" || $ ftype [1] == "sql") {                     threw out "";                 }                 // I check if the file is of type pdf                 elseif ($ ftype [1] == "pdf") {                     threw out "";                 }                  // I check if the file is excel                 elseif ($ ftype [1] == "xlsx") {                     threw out "";                 }                  // I check if the file is from powerpoint                 elseif ($ ftype [1] == "pptx") {                     threw out "";                 }                  // I check if the file is from word                 elseif ($ ftype [1] == "docx") {                     threw out "";                 }                  // I check if the file is text                 elseif ($ ftype [1] == "txt") {                     threw out "";                 }                  // I check if the file is video                 elseif ($ ftype [1] == "avi" || $ ftype [1] == "avi" || $ ftype [1] == "asf" || $ ftype [1] == "dvd" || $ ftype [1] == "m1v" || $ ftype [1] == "movie" || $ ftype [1] == "mpeg" || $ ftype [1] == "wn" || $ ftype [1] == "wmv") {                     threw out "";                 } else {                 threw out "";             }        //}     }   //} ? >                                                                                                                                                                                                                                                                                                                                                                                                                                                                              



                                                                            No files found in the current folder