Upload file to database

UPLOAD FILE TO DATABASE

<form method="post" action="" enctype="multipart/form-data">
 Select file: <input type="file" name="f1">
 <input type="submit" name="sub" value="UPLOAD">
</form>
<?php
if(is_uploaded_file($_FILES['f1']['tmp_name'])){
 mysql_connect("localhost","root","");
 mysql_select_db("test");
 $cont = file_get_contents($_FILES['f1']['tmp_name']);
 $cont = addslashes($cont);
 if(mysql_query("insert tbl_images values ('','$cont')"))
  echo "Image added";
 else 
  echo "not";
}
?>