input_gallery.php

<?php

    include('../includes/koneksi.php');

    $post_id = isset($_POST['post_id']) ? $_POST['post_id'] : '';  
    $confirmation = isset($_POST['confirmation']) ? $_POST['confirmation'] : '';  
    $kategori = isset($_POST['kategori']) ? $_POST['kategori'] : ''; 
    $post_image = isset($_POST['post_image']) ? $_POST['post_image'] : '';
    $page = isset($_POST['page']) ? $_POST['page'] : '';


    //Load image
    if (!empty($_GET['post_id'])){
        $result = mysql_query("SELECT * FROM static_page WHERE post_id =".$_GET['post_id']) or die(mysql_error());
        $data = mysql_fetch_array($result);
        $post_id = $data['post_ID'];
        $page = $data['page'];
        $post_image = $data['post_image'];


    }
    else {
    echo "unable to select data";
    echo "id is empty";
    }

    //Update Image
    if (isset($_POST['update'])){

        if (empty($_POST['post_id']))
            {
            $sqlstr = "INSERT INTO static_page(page, post_image) VALUES('".$page."','".$post_image."')";
            }
        else
        {
            $sqlstr = "UPDATE static_page SET page='".$page."', post_image='".$post_image."' WHERE id=".$_POST['post_id'];

        }
        $result = mysql_query($sqlstr) or die(mysql_error());

        // cek type file & simpan file pada folder
            $file_exts = array("jpg", "bmp", "jpeg", "gif", "png");
            $exts = explode('.', $_FILES["image"]["name"]);
            $upload_exts = end($exts);
            //$upload_exts = end(explode(".", $_FILES["image"]["name"]));
            if ((($_FILES["image"]["type"] == "image/gif")
            || ($_FILES["image"]["type"] == "image/jpeg")
            || ($_FILES["image"]["type"] == "image/png")
            || ($_FILES["image"]["type"] == "image/pjpeg"))
            && ($_FILES["image"]["size"] < 2000000)
            && in_array($upload_exts, $file_exts))
            {
            if ($_FILES["image"]["error"] > 0)
            {
            echo "Return Code: " . $_FILES["image"]["error"] . "<br>";
            }
            else
            {
            echo "Upload: " . $_FILES["image"]["name"] . "<br>";
            echo "Type: " . $_FILES["image"]["type"] . "<br>";
            echo "Size: " . ($_FILES["image"]["size"] / 1024) . " kB<br>";   
            echo "Temp file: " . $_FILES["image"]["tmp_name"] . "<br>";
            // Enter your path to upload file here
            if (file_exists("c:\xampp\xampp\htdocs\rustoleum/photocms/" .
            $_FILES["image"]["name"]))
            {
            echo "<div class='error'>"."(".$_FILES["image"]["name"].")".
            " already exists. "."</div>";
            }
            else
            {
            move_uploaded_file($_FILES["image"]["tmp_name"],
            "c:\xampp\xampp\htdocs\rustoleum/photocms/" . $_FILES["image"]["name"]);
            echo "<div class='sucess'>"."Stored in: " .
            "c:\xampp\xampp\htdocs\rustoleum/photocms/" . $_FILES["image"]["name"]."</div>";
            }
            }
            }
            else
            {
            echo "<div class='error'>Invalid file</div>";
            }

        //Jika mode edit, maka tidak akan dikirimkan konfirmasi kepada subscriber
        //if (empty($_REQUEST['id']))   kirimEmail($idKategori, $judul, $news);
        $confirmation = ($result) ? "Data telah tersimpan." : "Gagal menyimpan data.";  

    }
    ?>
    <div align="center">
        <div style="width:800px;text-align:left;">
        <?php echo $confirmation;?>
        <form method="post" action="<?php echo $_SERVER['PHP_SELF']?>">
            <input type="hidden" name="id" value="<?php echo $id; ?>"/>
            <table>
                <tr>
                    <td>Page <font color="red"></font></td>             
                    <td><input type="text" size="50px" name="page" value="<?php echo $page; ?>" ></td>
                </tr>
                <tr>
                    <td>Featured Image </td>              
                    <td>Image</td>                    
                </tr>
                <tr>
                    <td><input size="30px" type="file" name="image" value="<?php echo $image; ?>"/></td>
                </tr>    
                <tr>             
                    <td><br><br><input type="submit" name="update" value="Update"/><input type="reset" name="reset" value="Reset"/></td>
              </tr>
            </table>
        </form>
        </div>
    </div>
</div>    

If I try to upload picture file this message appears:

unable to select dataid is empty
Invalid file
Data telah tersimpan. (Data is saved)

Then in database, I have :

id image path judul

0 sulawesi.jpg

Yet, the picture is not yet moved to rustoleum/photocms/ as it suppose to. How to fix it?

Haven't tried your code, but as I can find just one "form", I'd take this is your front-end for the upload.

You have forgotten to add "enctype="multipart/form-data". So the correct form'd be:

<form method="post" action="<?php echo $_SERVER['PHP_SELF']?>" enctype="multipart/form-data">

Hope that helps.