<?php 
// Connect to the database 
	$dbLink = new mysqli('localhost', '', '', ''); 
	if(mysqli_connect_errno()) { 
	    die("MySQL connection failed: ". mysqli_connect_error()); 
	} 
	  
	// Query for a list of all existing files 
	$sql = 'SELECT `id`, `t_id`, `name`, `mime`, `size`, `created` FROM `file`'; 
	$result = $dbLink->query($sql);

<?php 
	// Check if a file has been uploaded 
	if(isset($_FILES['uploaded_file'])) { 
	    // Make sure the file was sent without errors 
	    if($_FILES['uploaded_file']['error'] == 0) { 
	        // Connect to the database 
	        $dbLink = new mysqli('localhost', '', '', ''); 
	        if(mysqli_connect_errno()) { 
	            die("MySQL connection failed: ".

<FORM METHOD="post" ACTION="add_file.php" ENCTYPE="multipart/form-data"> 
	<INPUT TYPE="hidden" NAME="MAX_FILE_SIZE" VALUE="1000000"> 
	<INPUT TYPE="hidden" NAME="action" VALUE="Upload"> 
	 <TABLE BORDER="1" cellspacing="1" cellpadding="3"> 
	  <TR> 
	   <TD>Teacher