Weblabor

$sql = "SELECT tananyag.*, doc.*, admin_user.id, admin_user.nev FROM tananyag 
				INNER JOIN doc ON tananyag.tan_id = doc.tananyag_id
				LEFT OUTER JOIN admin_user ON tananyag.tan_uploader = admin_user.id
				WHERE tananyag.tananyag_csoport = ".$_SESSION['logged']['nevsor_csoport']."
				ORDER BY tananyag.tan_upload_date DESC";
		
		echo $sql;
		
		$get_tananyag = mysqli_query($kapcs, $sql);
		
		if(mysqli_num_rows($get_tananyag) > 0 )
		{
			while($t = mysqli_fetch_assoc($get_tananyag))
			{
				?>
                <div class="row tananyag_row">
                	<h4 class="tananyag_title"><?php echo $t['tan_nev']; ?></h4>
                    <p><?php echo $t['tan_leiras']; ?></p>
                    <span class="tananyag_uploaded_info"><i class="glyphicon glyphicon-user"></i> Feltöltötte: <?php echo $t['nev']; ?></span>
                    <span class="tananyag_uploaded_info"><i class="glyphicon glyphicon-calendar"></i> 
                    Feltöltés dátuma: <?php echo substr($t['tan_upload_date'], 0, -3); ?></span>
                    <span class="tananyag_uploaded_info"><i class="glyphicon glyphicon-file"></i> Fájl, dokumentum: 
                    <a href="docs/<?php echo $t['doc_file']; ?>" class="file_link"><?php echo $t['doc_file']; ?></a></span>
                </div>
                <?php
			}
		}
		else
		{
			echo '<p>Tananyagok feltöltése folyamatban...</p>';
		}
		?>