Teknik Informatika

<div class="col-md-6 col-md-offset-3">
<?php
$sql_edit ="SELECT * FROM berita WHERE id_berita=".$_GET['id'];
$r = $conn->query($sql_edit)->fetch_array();
//eksekusi edit
if(isset($_POST['edit'])){
//variabel yang diedit
$gambar = $_FILES["gambar"]["name"];
$judul = $_POST['judul'];
$isi = htmlentities($_POST['isi']);
//pengecekan dan unggah gambar
if(!empty($_FILES["gambar"]["name"])){
$target_dir = "gambar/";
$target_file = $target_dir . basename($_FILES["gambar"]["name"]);
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
$check = getimagesize($_FILES["gambar"]["tmp_name"]);
if($check !== false){
if(move_uploaded_file($_FILES["gambar"]["tmp_name"], $target_file)){
$sql = "UPDATE berita SET judul='".$judul."', isi ='".$isi."', gambar ='".$gambar."' WHERE id_berita ='".$_GET['id']."'";
$ok = 1;
}else{
echo '<div class="alert alert-danger">';
echo '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
echo "Maaf Terjadi Kesalahan Saat Mengunggah Gambar";
echo '</div>';
$ok = 0;
}
}else{
echo '<div class="alert alert-danger">';
echo '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
echo "File Yang Diunggah Bukan Gambar";
echo '</div>';
$ok = 0;
}
}else{
$sql = "UPDATE berita SET judul='".$judul."', isi ='".$isi."', gambar ='".$gambar."' WHERE id_berita ='".$_GET['id']."'";
$ok = 1; }
if($ok ==1){
$result = $conn->query($sql);
if($result === TRUE) {
echo '<div class="alert alert-success">';
echo '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
echo "Berita Telah Berhasil Di Ubah";
echo '</div>';
header('Location: index.php');
}else{
echo '<div class="alert alert-danger">';
echo '<a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>';
echo "Error: " .$sql . "<br>" . $conn->error;
echo '</div>';
}
}
}
?>
</div>
<div class="row">
<div class="col-md-6 col-md-offset-3 thumbnail">
<h4 class="text-center">Ubah Berita</h4>
<form method="post" enctype="multipart/form-data">
<label>Gambar Berita :</label>
<input type="file" name="gambar" class="form-control"><hr>
<label>Judul Berita :</label>
<input type="text" name="judul" class="form-control" required value="<?php echo $r['judul'] ?>"><hr>
<label>Isi Berita :</label>
<textarea name="isi" class="form-control" required><?php echo $r['isi'] ?></textarea><hr>
<input type="submit" name="edit" class="btn btn-success" value="Simpan">
</form>
</div>
</div>

Silahkan lihat Tutorial Membuat Perintah DELETE selanjutnya

Semoga bermanfaat.

Assalamualaikum Wr. WB