Source Code: php/dbmenu/menu.php

<!DOCTYPE html>
<html>
<head>
<title>CSS Menu Dinamis dengan PHP</title>
<style>
.menubar{
	display:block;
	height:38px;
	background:#000
}
.menubar ul{
	margin:0;
	padding:0;
	list-style:none;
	z-index:99999;
}
.menu a,.menu a:visited{
	display:block;
	text-decoration:none;
	padding:10px 18px;
	position:relative;
	z-index:99999;
}
.menu{
	vertical-align:top;
	display:inline-block;
}
.menu li{
	position:relative;
	z-index:99999;
}
.menu>li{
	float:left;
}
.menu li>a,.menu li>a:visited{
	color:#fff;
	font-weight:bold;
	background: #00009e;
}
.menu>li:hover>a{
	background: #008800;
}
.menu li li>a:hover{
	color:#fff;
	background:#00009e;
}
.menu li li a{
	background: #008800;
	color:#fff;
}
.menu li:hover li a{
	font-weight:normal;
}
.menu ul{
	position:absolute;
	white-space:nowrap;
	z-index:99999;
	left:-99999em;
	margin-top:0px;
}
.menu>li:hover>ul{
	left:auto;
	min-width:100%;
}

body{font-family:arial;font-size:13px;color:#444;background:#eee}
.wrapper{width:900px;margin:auto}

</style>
</head>
<body>
<div class="wrapper">
<div class="menubar">
<ul class="menu">
<?php
// koneksi
$mysqli = new mysqli('localhost', 'root', '', 'mydb');

// ambil menu utama
$res = $mysqli->query("SELECT idmenu,menu,link from menu where sub='0'");
while($menu = $res->fetch_array(MYSQLI_ASSOC)){
	// tampilkan sub menu kalau ada
	$res2 = $mysqli->query("SELECT idmenu,menu,link from menu where sub='$menu[idmenu]'");
	$num = $res2->num_rows;
	echo "  <li><a href=\"$menu[link]\">$menu[menu]</a>";
	if($num>0){
		echo "\n  <ul>\n";
		while($sub = $res2->fetch_array(MYSQLI_ASSOC)){
			echo "	<li><a href=\"$sub[link]\">$sub[menu]</a></li>\n";
		}
		$res2->free_result();
		echo "  </ul>";
	}
	echo "</li>\n";
}
$res->free_result();
?>
</ul>
</div>
</body>
</body>
</html>