move_upload

<?php
include "../config/koneksi.php";
extract($_POST);
    $newDate = date("Y-m-d", strtotime($_POST['tanggal']));
    $list = array("jpg", "png","jpeg","gif");
    $nama_file=$_FILES['datafile']['name'];
    $pecah = explode(".", $nama_file);
    $ekstensi = $pecah[1];
    $ukuran=$_FILES['datafile']['size'];
    $uploaddir='../links/';

    $alamatfile=$uploaddir.$nama_file;
    $sql=mysql_query("SELECT * FROM  `tabel_link` WHERE id_link") or die('Error, query failed. ' . mysql_error());
    $ada=mysql_fetch_array($sql);
    $gambar=$ada['gambar'];
    $imageInformation = getimagesize($_FILES['datafile']['tmp_name']);
    $imageWidth = $imageInformation[0]; //Contains the Width of the Image
    $imageHeight = $imageInformation[1]; //Contains the Height of the Image
    $width=380;
    $height=265;
if (($imageWidth != $width) && ($imageHeight!=$height))
{
    echo "<script>
                    alert ('Perhatikan ukuran');
                    window.location='tambah_artikel.php';
                    </script>";

}

//di bagian ini kok gak runing ya bang
    if ($nama_file==$gambar)
    {
        echo "<script>
                        alert ('Nama file sama, harap ganti');
                    window.location='tambah_links.php';
                        </script>";
        die();

    }else{

        if (in_array($ekstensi, $list))
        {
            {if (move_uploaded_file($_FILES['datafile']['tmp_name'],$alamatfile)){
                $sql1=mysql_query("INSERT INTO `cms`.`tabel_link` (`id_link`, `judul`, `tgl`, `gambar`,
        `link`, `artikel`, `status`)
        VALUES (NULL, '$judul', '$newDate', '$nama_file', '$link', '$artikel', '$stat')");
                if ($sql1){
                 echo "<script>
                    alert('upload OK');
                    window.location='master_links.php';
                 </script>";
                }else{
                    die(mysql_error()."<br/>$sql");

                }


            }else{
                die('tidak bisa move file');

            }
            }
        }else{
            echo "<script>
                        alert ('Format harus jpg atau png');
                        window.location='tambah_links.php';
                        </script>";
        }
    }