Crud application wont instert into database - php

Question

my application wont insert into database, and its not giving me any errors.
If my question is a duplicate, please redirect me to the original question, thanks.
MY PHP CODE:
<?php
include_once("dbconfig.php");
if(isset($_POST['submit'])){
/*$targetDir = "slike/";
$allowTypes = array('jpg','png','jpeg','gif');
$statusMsg = $errorMsg = $insertValuesSQL = $errorUpload = $errorUploadType = '';*/
$image = $_FILES['files']['tmp_name'];
$file = addslashes(file_get_contents($image));
$name = mysqli_real_escape_string($mysqli, $_POST['ime']);
$group=mysqli_real_escape_string($mysqli,$_POST['grupa']);
$semi=mysqli_real_escape_string($mysqli,$_POST['podgrupa']);
$price=mysqli_real_escape_string($mysqli,$_POST['cena']);
if(empty($name) || empty($group) || empty($semi)||empty($price)) {
echo "<font color='red'>Namesteno je da sve moraju da budu popunjene.</font><br/>";
if(empty($name)) {
echo "<font color='red'>Ime je prazno.</font><br/>";
}
if(empty($group)) {
echo "<font color='red'>Grupa je prazna.</font><br/>";
}
if(empty($semi)) {
echo "<font color='red'>Podgrupa je prazna.</font><br/>";
}
if(empty($price)){
echo "<font color='red'>Cena je prazna.</font><br/>";
}
}
else{
$result = mysqli_query($mysqli, "INSERT INTO slike(ime,grupa,podgrupa,cena,slika) VALUES('$name','$group','$semi','$price','$file')");
echo "<font color='green'>Data added successfully.";
}
}
?>
My html:
</div>
<div class="content">
<form action="" method="post" enctype="multipart/form-data">
Slike biras ovde:
<input type="file" name="files">
<p>IME</p>
<input type="text" name="ime">
<p>GRUPA</p>
<input type="text" name="grupa">
<p>PODGRUPA</p>
<input type="text" name="podgrupa">
<p>CENA</p>
<input type="text" name="cena">
<input type="submit" name="submit" value="UPISI">
</form>
If you need some more codes i will post it in replies.
Problem is that i get the message "Data added successfully"
But when i go to the database, its empty.
THANKS to anyone who helps me.

Answer 1

<form action="/your_php_file.php" method="post" enctype="multipart/form-data">
Please set action to your form which should go to your php file.