storing image in database

<form action="<?php htmlentities($_SERVER['PHP_SELF']);?>" method="post" enctype="multipart/form-data">
<input type="file" name="images">
<input type="submit" value="upload"name="upload">

</form>
<?php
$con=mysqli_connect("localhost","root","","sample");

if(isset($_POST['upload']) && $_FILES['images'])
{
$fileName = $_FILES['images']['name'];
$tmpName  = $_FILES['images']['tmp_name'];

//$fileSize = $_FILES['images']['size'];
//$fileType = $_FILES['images']['type'];
$save="images/".$fileName;
move_uploaded_file($tmpName,$save);
$query = "INSERT INTO img (img) VALUES ('$save')";
$result=mysqli_query($con,$query);
echo "<img src='$save'>";
}

?>