alert("You file extension must be .png, .pdf, .docx, .jpg, .jpeg");location.href="material.php"';
} elseif ($_FILES['image']['size'] > 100000000) { // file shouldn't be larger than 1Megabyte
echo '';
} else {
// move the uploaded (temporary) file to the specified destination
if (move_uploaded_file($file, $destination)) {
$sql = "INSERT INTO `study_material` (`id`, `timestamp`, `description`, `file`) VALUES (NULL, CURRENT_TIMESTAMP, '".$_POST['title']."', '".$filename."')";
if (mysqli_query($con, $sql)) {
echo '';
}
} else {
echo '';
}
}
}
if($_GET['action']=='del')
{
if(file_exists("../uploads/study_material/".$_GET['file']))
unlink("../uploads/study_material/".$_GET['file']);
$con->query("DELETE FROM study_material where id = '".$_GET['id']."'");
echo '';
}
?>