tanya

========================================================= login ==============================================
<?php
session_start();
include"koneksi.php";
$userid = $_POST['userid'];
$psw = md5($_POST['pass']);
$op = $_GET['op'];
if($op=="in"){
$cek = mysqli_query($db,"SELECT * FROM login WHERE userid='$userid' AND pass='$psw'");
if(mysqli_num_rows($cek)==1){
$c = mysqli_fetch_array($cek);
$_SESSION['userid'] = $c['userid'];
$_SESSION['mapel'] = $c['mapel'];
if($c['mapel']=="XXX"){
header("location:../admin/index.php");
}else if($c['mapel']=="Inggris" or $c['mapel']=="Indonesia" or $c['mapel']=="Matematika" or $c['mapel']=="IPA" or $c['mapel']=="IPS" or $c['mapel']=="Sejarah" or $c['mapel']=="Ekonomi" ){
header("location:../guru/index.php");
}
}else{
echo "<script type='text/javascript'> alert('Maaf Username dan Password Anda Tidak Cocok!'); window.location=('../index.php'); </script>";
}
}else if($op=="out"){
unset($_SESSION['userid']);
unset($_SESSION['mapel']);
header("location:../index.php");
}
?>

==============================================================================================================
=======================================================mapel-data=============================================
<?php
session_start();
include"../config/koneksi.php";
$requestData= $_REQUEST;

$userid=$_SESSION['userid'];
$query1 = mysqli_query($db,"SELECT mapel FROM login where userid='$_SESSION[userid]'");
while ($data = mysqli_fetch_assoc($query1)) {}

$columns = array(
	0 => 'nama',
    1 => 'kelas',
	2 => 'nilai',
	3 => 'mapel'
//
//
//
);


$sql = "SELECT * ";
$sql.=" FROM mapel where mapel='".$_SESSION['mapel']."' ";
$query=mysqli_query($db, $sql) or die("karyawan-data.php: get InventoryItems".mysqli_error());
$totalData = mysqli_num_rows($query);
$totalFiltered = $totalData;
if( !empty($requestData['search']['value']) ) {
	$sql = "SELECT *";
	$sql.=" FROM mapel";
	$sql.=" WHERE nama LIKE '".$requestData['search']['value']."%' ";

	$query=mysqli_query($db, $sql) or die("mapel-data.php: get PO");
	$totalFiltered = mysqli_num_rows($query);

	$sql.=" ORDER BY ". $columns[$requestData['order'][0]['column']]."   ".$requestData['order'][0]['dir']."   LIMIT ".$requestData['start']." ,".$requestData['length']."   ";
	$query=mysqli_query($db, $sql) or die("mapel-data.php: get PO");

} else {

	$sql = "SELECT * ";
	$sql.=" FROM mapel where mapel='".$_SESSION['mapel']."' ";
	$sql.=" ORDER BY ". $columns[$requestData['order'][0]['column']]."   ".$requestData['order'][0]['dir']."   LIMIT ".$requestData['start']." ,".$requestData['length']."   ";
	$query=mysqli_query($db, $sql) or die("mapel.php: get PO".mysqli_error());

}

$data = array();
while( $row=mysqli_fetch_array($query) ) {
	$nestedData=array();

	$nestedData[] = $row["nama"];
    $nestedData[] = $row["kelas"];
	$nestedData[] = $row["nilai"];
	$nestedData[] = $row["mapel"];
    //
    //
	//
    $nestedData[] = '<td><center>
                     <a href="mapel-e.php?nik='.$row['nik'].'"  data-toggle="tooltip" title="Edit" class="btn btn-sm btn-warning"> <i class="menu-icon icon-pencil"></i> </a>
                     <a href="mapel.php?hal=hapus&kd='.$row['nik'].'"  data-toggle="tooltip" title="Hapus" class="btn btn-sm btn-danger"> <i class="menu-icon icon-trash"></i> </a>
				     </center></td>';

	$data[] = $nestedData;

}



$json_data = array(
			"draw"            => intval( $requestData['draw'] ),
			"recordsTotal"    => intval( $totalData ),
			"recordsFiltered" => intval( $totalFiltered ),
			"data"            => $data
			);

echo json_encode($json_data);

?>