aplot

$allowed_ext  = array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'pdf', 'rar', 'zip');
$file_name    = $_FILES['file']['name']; // File adalah nama_kgt dari tombol input pada form
$file_ext     = strtolower(end(explode('.', $file_name)));
$file_size    = $_FILES['file']['size'];
$file_tmp     = $_FILES['file']['tmp_name'];
$lokasi       = 'file/kegiatan/'.$nama_kgt.'-'.$file_name;

if(in_array($file_ext, $allowed_ext) === true)
{
  if($file_size <= 3145728) // Max Upload 3 MB | 1 MB = 1048576 KB
  {
     move_uploaded_file($file_tmp, $lokasi);
     $sql = "INSERT INTO kegiatan (id_kgt,nama_kgt,ket,tg_mulai,tg_akhir,type,size,file)
     VALUES('$id_kgt','$nama_kgt','$ket','$tg_mulai','$tg_akhir','$file_ext','$file_size','$lokasi')";

     if(mysqli_query($conn, $sql))
     {echo "<script>alert('Upload Kegiatan berhasil! Klik ok untuk melanjutkan');location.replace('kegiatan_list.php')</script>";}
     else {echo "Error updating record: " . mysqli_error($conn);}
  }
     else{echo "<script>alert('ERROR: Besar ukuran file (file size) maksimal 3 Mb!');history.go(-1)</script>";}
}
else {echo "<script>alert('Jenis file tidak sesuai!');history.go(-1)</script>";}