PHP CRUD NEWBIE

ass.. saya newbie diphp..saya mw bertanya?sebenarnya penyebab gagal update dicrud itu apa ya gan?

 <?php

include "../../../../conf/connection.php";
$opsi = $_GET['opsi'];
if($opsi == "input"){
	$news_title = $_POST['news_title'];
	$news_post_by = $_POST['news_post_by'];
	$news_content = $_POST['news_content'];
	$news_post_date = $_POST['news_post_date'];


	$db->query("insert into tb_news(news_title, news_post_by, news_content, news_post_date)
				VALUES ('".$news_title."',
						'".$news_post_by ."',
						'".$db->real_escape_string($news_content)."','".$news_post_date."')");


				if($db->error){
					echo "gagal mengepost berita";
				}
				else{ header('location:http://localhost/projectweb/administator/file_data/news/views/form_news.php');}
}

elseif($opsi == "delete"){
	$id = $_GET['id'];
	$deldata = $db->query("delete from tb_news where id_news='".$id."'");

	header('location:../views/list_news.php');

}

elseif($opsi == "update"){
	$id 			= $_POST['id'];
	$news_title		= $_POST['news_title'];
	$news_post_by 	= $_POST['news_post_by'];
	$news_content 	= $_POST['news_content'];
	$news_post_date = $_POST['news_post_date'];

	$db->query("update tb_news set										news_title 			='".$news_title."',
																		news_post_by 		='".$news_post_by."',
																		news_content 		='".$news_content."',
																		news_post_date 		='".$news_post_date."',
																		where id_news = '".$id."'");
	if($db->error){
		echo "gagal update berita";
	}
	else{ header('location:http://localhost/projectweb/administator/file_data/news/views/list_news.php');}
}



?>

<?php
include "../../../../conf/connection.php";
?>

<table>
	<tr>
		<th>No</th><th>Title</th><th>Posted</th><th>Content</th><th>Date</th><th>#</th>
	</tr>
	<?php
		$q = $db->query("select *from tb_news");
		$no=1;
		while($r=$q->fetch_array()){


	?>

		<tr>
			<td><?php echo $no; ?></td>
			<td><?php echo $r['news_title']; ?></td>
			<td><?php echo $r['news_post_by']; ?></td>
			<td><?php echo htmlentities(substr($r['news_content'], 0,50)); ?></td>
			<td><?php echo $r['news_post_date']; ?></td>
			<td>

				<a href="edit_news.php?id=<?php echo $r['id_news'];?>">Edit</a>
				<a href="../controllers/news_controllers.php?opsi=delete&id=<?php echo $r['id_news']?>">Delete</a>
			</td>
		</tr>

	<?php

		$no++;
		}
	?>


</table>

<?php
include "../../../../conf/connection.php";

$q 				= $db->query("select * from tb_news where id_news='".$_GET['id']."'");
$r 				= $q->fetch_object();
$news_title 	= $r->news_title;
$news_post_by 	= $r->news_post_by;
$news_post_date	= $r->news_post_date;
$news_content	= $r->news_content;

?>
<form method="POST" action="../controllers/news_controllers.php?opsi=update" enctype="multipart/form_data">
	<input type="hidden" name="id" value="<?php echo $r->id_news; ?>">
	<table width="500" border="0">
		<tr>
			<td>Title</td>
			<td>:</td>
			<td><input type="text" name="news_title" id="news_title" value="<?php echo $news_title;?>"></td>
		</tr>
		<tr>
			<td>Post by</td>
			<td>:</td>
			<td><input type="text" name="news_post_by" id="news_post_by" value="<?php echo $news_post_by;?>"></td>
		</tr>
		<tr>
			<td>Content</td>
			<td>:</td>
			<td><textarea name="news_content" id="news_content"><?php echo $news_content;?></textarea></td>
		</tr>
		<tr>
			<td>Date</td>
			<td>:</td>
			<td><input type="date" name="news_post_date" id="news_post_date" value="<?php echo $news_post_date;?>"></td>
		</tr>
		<tr>
			<td colspan="3"><input type="submit" name="posting" id="posting" value="Posting"></td>
		</tr>
	</table>
</form>

<script src='http://localhost/projectweb/assets/js/jquery-2.1.1.min.js' type='text/javascript'></script> //sempet eror disini karena setelah localhost ada spasinya.alhamdulillah karna sabarrr allahu akbarrr 4mei 8.23 tp upload tetep gagal
	<script src='http://localhost/projectweb/assets/tinymce/js/tinymce/tinymce.min.js'></script>
	<!-- <script src='https://cloud.tinymce.com/stable/tinymce.min.js'></script> -->

	<script>
		$(document).ready(function() {
			tinymce.init({
				selector:"#news_content",theme: "modern",width: 1000,height: 400,
				plugins: [
					"advlist autolink link image list charmap print preview hr anchor pagebreak",
					"searchplace wordcount visualblocks visualchars insertdatetime media nonbreaking",
					"table contextmenu directionality emoticons paste textcolor responsivefilemanager code"

				],
				toolbar1: "undo  redo  | bold italic underline | alignleft aligncenter alignright alignjustify | bullist  numlist outdent indent | styleselect",
				toolbar2: "| resfonsivefilemanager | link unlink anchor | image media | forecolor backcolor | print preview code",
				image_advtab : true,
				relative_urls: false,

				external_filemanager_path:"/projectweb/filemanager/",
				filemanager_title:"Responsive Filemanager",
				external_plugins: { "filemanager" : "/projectweb/filemanager/plugins.min.js"}
			});
		});
	</script>