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tampil.php
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<?php
error_reporting(1);
include('db.php');
//Untuk menghilangkan warning
if (!$_GET['act']){
$_GET['act']='baru';
}
// Inisiasi data untuk menghindari warning
$pesan = NULL; //bersihkan $pesan
$hasilSimpan=NULL;
$defaultNama = NULL;
$defaultEmail = NULL;
$defaultPesan = NULL;
$defaultID = NULL;
if ($_GET['act']=='simpan'){
// Proses penyimpanan data
$nama = $_POST['nama'];
$email = $_POST['email'];
$pesan = $_POST['pesan'];
$id = $_POST['id'];
if ($id){
// kalau ada $id berarti edit
$sqlSimpan = "
UPDATE guestbook
SET nama='".$nama."', email='".$email."', pesan='".$pesan."'
WHERE
id = '".$id."'
;";
}else{
// karena tidak ada $id berarti simpan baru
$sqlSimpan = "
INSERT INTO guestbook
(nama, email, pesan)
VALUES
('".$nama."',
'".$email."',
'".$pesan."');";
}
echo $sqlSimpan;
$resultSimpan = mysqli_query($conn,$sqlSimpan);
$hasilSimpan = mysqli_affected_rows($conn);
$pesan = "<div>Penyimpanan ".$hasilSimpan." data berhasil.</div>";
}
if ($_GET['act']=='delete'){
// hapus data $_GET['nim']
if ($_GET['id']){
$sql = "Delete from guestbook where id='".$_GET['id']."'";
$resultDelete = mysqli_query($conn, $sql);
}
}
if ($_GET['act']=='edit'){
// tampilkan form edit data di sini;
$idEdit = $_GET[id]; // $idEdit adalah id dari data yang akan diedit
//Baca dari database data dengan id = $idEdit
$sqlBaca = "SELECT * FROM guestbook WHERE id='".$idEdit."'; ";
$resultBaca = mysqli_query($conn, $sqlBaca);
if ($rowBaca = mysqli_fetch_assoc($resultBaca)){
// apakah data dengan id tersebut ada di database
$defaultNama = $rowBaca['nama'];
$defaultEmail = $rowBaca['email'];
$defaultPesan = $rowBaca['pesan'];
$defaultID = $rowBaca['id'];
}else{
$pesan = '<div>Data tidak diketemukan di database.</div>';
}
}
?><!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<h1>Guestbook</h1>
<div>
<form method="post" action="tampil.php?act=simpan">
<input type="hidden" name="id" value="<?php echo $defaultID;?>">
<div><label for="nama">Nama:</label>
<input type="text" name="nama" value="<?php echo $defaultNama; ?>"></div>
<div><label for="email">Email:</label>
<input type="email" name="email" value="<?php echo $defaultEmail; ?>"></div>
<div><label for="pesan">Pesan:</label>
<textarea name="pesan"><?php echo $defaultPesan; ?></textarea></div>
<div><input type="submit" name="simpan" value="Simpan"></div>
</form>
</div>
<?php
if ($pesan){
echo $pesan;
}
$sql = "SELECT * FROM guestbook order by tanggal desc";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result)>0){
echo "<table border=1>";
echo "<thead><tr><th>ID</th><th>Nama</th><th>Email</th><th>Pesan</th><th>Tgl Simpan</th><th>Action</th></tr></thead><tbody>";
while($row = mysqli_fetch_assoc($result)){
echo "<tr>";
echo "<td>".$row['id']."</td>";
echo "<td>".$row['nama']."</td>";
echo "<td>".$row['email']."</td>";
echo "<td>".$row['pesan']."</td>";
echo "<td>".$row['tanggal']."</td>";
echo "<td><a href='tampil.php?act=delete&id=".$row['id']."'>Delete</a> <a href='tampil.php?act=edit&id=".$row['id']."'>Edit</a></td>";
echo "</tr>";
}
echo "</tbody></table>";
}else{
echo "tidak ada data";
}
?>
</body>
</html>