code simpan sql

$simpan=$_POST['simpan'];
$variabel=$_POST['variabel'];
$variabel=$_POST['variabel'];
$variabel=$_POST['variabel'];
$variabel=$_POST['variabel'];
$gambar=$_FILES['gambar']['name'];
$cari=mysql_query("select * from tabel where id='id'");
if ($simpan)
{
if ($row=mysql_fetch_array($cari))
{
echo "<script>alert('Data Telah Ada');</script>";
}
else
{
mysql_query("insert into tabel set variabel='$ivariabel',variabel='$variabel',variabel='$variabel',variabel='$variabel',variabel='$variabel'")
or die(mysql_error());
copy($_FILES['gambar']['tmp_name'],"../images/$gambar");
echo "<script>location='.?page=adventure';</script>";
}
}
  ?>

penjelasan: ini kode simpan sql disertai dengan gambar klau tidak disertai gambar hapus ini
$gambar=$_FILES['gambar']['name'];
copy($_FILES['gambar']['tmp_name'],"../images/$gambar");
terimakasih..............atas kunjungannya