w jaki sposób można by ten kod zoptymalizować ?
Mam go powtórzonego aż 20 x ponieważ w moim serwisie można wgrać aż 20 zdjęć... lecz strasznie długo czasu to zawiera

CODE
//Wgrywanie pliku
if ((($_FILES["file1"]["type"] == "image/gif")
|| ($_FILES["file1"]["type"] == "image/jpeg")
|| ($_FILES["file1"]["type"] == "image/png")
|| ($_FILES["file1"]["type"] == "image/pjpeg"))
&& ($_FILES["file1"]["size"] < 500000))
{
move_uploaded_file($_FILES["file1"]["tmp_name"],
"upload/".$_SESSION[login].$ciag.zamiana($_FILES["file1"]["name"]));
$file1=$_SESSION[login].$ciag.zamiana($_FILES["file1"]["name"]);
}
//file 2
if ((($_FILES["file2"]["type"] == "image/gif")
|| ($_FILES["file2"]["type"] == "image/jpeg")
|| ($_FILES["file2"]["type"] == "image/png")
|| ($_FILES["file2"]["type"] == "image/pjpeg"))
&& ($_FILES["file2"]["size"] < 500000))
{
move_uploaded_file($_FILES["file2"]["tmp_name"],
"upload/".$_SESSION[login].$ciag.zamiana($_FILES["file2"]["name"]));
$file2=$_SESSION[login].$ciag.zamiana($_FILES["file2"]["name"]);
}
//file 3
if ((($_FILES["file3"]["type"] == "image/gif")
|| ($_FILES["file3"]["type"] == "image/jpeg")
|| ($_FILES["file3"]["type"] == "image/png")
|| ($_FILES["file3"]["type"] == "image/pjpeg"))
&& ($_FILES["file3"]["size"] < 500000))
{
move_uploaded_file($_FILES["file3"]["tmp_name"],
"upload/".$_SESSION[login].$ciag.zamiana($_FILES["file3"]["name"]));
$file3=$_SESSION[login].$ciag.zamiana($_FILES["file3"]["name"]);
}
//file 4
if ((($_FILES["file4"]["type"] == "image/gif")
|| ($_FILES["file4"]["type"] == "image/jpeg")
|| ($_FILES["file4"]["type"] == "image/png")
|| ($_FILES["file4"]["type"] == "image/pjpeg"))
&& ($_FILES["file4"]["size"] < 500000))
$upload="upload/";
$file1=$upload.$file1;
$file2=$upload.$file2;
$file3=$upload.$file3;
$file4=$upload.$file4;
if ((($_FILES["file1"]["type"] == "image/gif")
|| ($_FILES["file1"]["type"] == "image/jpeg")
|| ($_FILES["file1"]["type"] == "image/png")
|| ($_FILES["file1"]["type"] == "image/pjpeg"))
&& ($_FILES["file1"]["size"] < 500000))
{
move_uploaded_file($_FILES["file1"]["tmp_name"],
"upload/".$_SESSION[login].$ciag.zamiana($_FILES["file1"]["name"]));
$file1=$_SESSION[login].$ciag.zamiana($_FILES["file1"]["name"]);
}
//file 2
if ((($_FILES["file2"]["type"] == "image/gif")
|| ($_FILES["file2"]["type"] == "image/jpeg")
|| ($_FILES["file2"]["type"] == "image/png")
|| ($_FILES["file2"]["type"] == "image/pjpeg"))
&& ($_FILES["file2"]["size"] < 500000))
{
move_uploaded_file($_FILES["file2"]["tmp_name"],
"upload/".$_SESSION[login].$ciag.zamiana($_FILES["file2"]["name"]));
$file2=$_SESSION[login].$ciag.zamiana($_FILES["file2"]["name"]);
}
//file 3
if ((($_FILES["file3"]["type"] == "image/gif")
|| ($_FILES["file3"]["type"] == "image/jpeg")
|| ($_FILES["file3"]["type"] == "image/png")
|| ($_FILES["file3"]["type"] == "image/pjpeg"))
&& ($_FILES["file3"]["size"] < 500000))
{
move_uploaded_file($_FILES["file3"]["tmp_name"],
"upload/".$_SESSION[login].$ciag.zamiana($_FILES["file3"]["name"]));
$file3=$_SESSION[login].$ciag.zamiana($_FILES["file3"]["name"]);
}
//file 4
if ((($_FILES["file4"]["type"] == "image/gif")
|| ($_FILES["file4"]["type"] == "image/jpeg")
|| ($_FILES["file4"]["type"] == "image/png")
|| ($_FILES["file4"]["type"] == "image/pjpeg"))
&& ($_FILES["file4"]["size"] < 500000))
$upload="upload/";
$file1=$upload.$file1;
$file2=$upload.$file2;
$file3=$upload.$file3;
$file4=$upload.$file4;