Weekly Menu Rotation - php

Question

So basically i have a Project where i have to make our Menu Order Website better, for that i want to Include a Weekly rotating menu where the Users can order, i have the whole website done including the Admin panels yet i cant figure out how to create a rotating website, for now i have all Menus included in the Main Website i tried it with Wordpress code, which i then realised isnt supported in basic php... the only code i find is from 2014 and i dont have a clue where to include it in my code as im a Newbie :) What would be cool is like a small dropdown button where you can show the next weeks menu too
Main Site section to order menus
<!-- fOOD sEARCH Section Starts Here -->
<section class="food-search text-center">
<div class="container">
<form action="<?php echo SITEURL; ?>food-search.php" method="POST">
<input type="search" name="search" placeholder="Search for Food.." required>
<input type="submit" name="submit" value="Search" class="btn btn-primary">
</form>
</div>
</section>
<!-- fOOD sEARCH Section Ends Here -->
<!-- fOOD MEnu Section Starts Here -->
<section class="food-menu">
<div class="container">
<h2 class="text-center">Mama Bringts Menüs</h2>
<?php
//Zeigt Menüs an die auf Active gesetzt sind
$sql ="SELECT * FROM tbl_food WHERE active='Yes'";
//Query ausführen
$res = mysqli_query($conn, $sql);
//Rows zählen
$count= mysqli_num_rows($res);
//Schauen ob die Menüs verfügbar (Active) sind
if($count>0)
{
//Verfügbar
while($row=mysqli_fetch_assoc($res))
{
//Werte auslesen
$id = $row['id'];
$title = $row['title'];
$description = $row['description'];
$price = $row['price'];
$image_name =$row['image_name'];
?>
<div class="food-menu-box">
<div class="food-menu-img">
<?php
//Bild verfügbar oder nicht
if($image_name=="")
{
//Bild nicht verfügbar
echo "<div class='error'>Das Bild ist nicht verfügbar</div>";
}
else
{
//Bild verfügbar
?>
<img src="<?php echo SITEURL; ?>images/food/<?php echo $image_name; ?>" alt="Chicke Hawain Pizza" class="img-responsive img-curve">
<?php
}
?>
</div>
<div class="food-menu-desc">
<h4><?php echo $title; ?></h4>
<p class="food-price"><?php echo $price; ?></p>
<p class="food-detail">
<?php echo $description; ?>
</p>
<br>
Jetzt Bestellen
</div>
</div>
<?php
}
}
else
{
//Nicht verfügbar
echo "<div class='error'>Das Menü wurde nicht gefunden!</div>";
}
?>
<div class="clearfix"></div>
</div>
</section>
<!-- fOOD Menu Section Ends Here -->
<?php include('partials-front/footer.php')?>
Admin Site to Manage the Menus
<!-- Main Content Section -->
<div class="main-content">
<div class="wrapper">
<h1>Administrator Verwaltung</h1>
<br /><br /><br />
<?php
if(isset($_SESSION['add']))
{
echo $_SESSION['add']; //Zeigt Session Nachricht an
unset($_SESSION['add']); //Entfernt Session Nachricht
}
if(isset($_SESSION['delete']))
{
Echo $_SESSION['delete'];
unset($_SESSION['delete']);
}
if(isset($_SESSION['update']))
{
echo $_SESSION['update'];
unset($_SESSION['update']);
}
if(isset($_SESSION['user-not-found']))
{
echo $_SESSION['user-not-found'];
unset($_SESSION['user-not-found']);
}
if(isset($_SESSION['pwd-not-match']))
{
echo $_SESSION['pwd-not-match'];
unset($_SESSION['pwd-not-match']);
}
if(isset($_SESSION['change-pwd']))
{
echo $_SESSION['change-pwd'];
unset($_SESSION['change-pwd']);
}
?>
<br><br><br>
<!-- Button to add Admin -->
Add Admin
<br/><br/><br/>
<table class="tbl-full">
<tr>
<th>S.N.</th>
<th>Full Name</th>
<th>Username</th>
<th>Actions</th>
</tr>
<?php
//Fügt alle Admins zum Table hinzu
$sql = "SELECT * FROM tbl_admin";
//Führt die Query aus
$res = mysqli_query($conn, $sql);
//Schaut nach ob die Query ausgeführt wurde oder nicht
if($res==TRUE)
{
// Zählt die Zeilen in der Datenbank um zu schauen ob wir Daten in der Bank haben oder nicht
$count = mysqli_num_rows($res); // Holt sich alle Zeilen der Datenbank
$sn=1; //Created die Variablen und Weisst die den Admins zu
//Checkt die Anzahl von Zeilen
if($count>0)
{
//Haben Daten in Datenbank
while($rows=mysqli_fetch_assoc($res))
{
//Benutzen While loop um die Daten in der Datenbank zu bekommen
//Der Loop lauft so lang wir Daten haben
//Individuelle Daten ziehen
$id=$rows['id'];
$full_name=$rows['full_name'];
$username=$rows['username'];
//Values im Table anzeigen
?>
<tr>
<td><?php echo $sn++; ?></td>
<td><?php echo $full_name; ?></td>
<td><?php echo $username; ?></td>
<td>
Change Password
<a href="<?php echo SITEURL; ?>admin/update-admin.php?id=<?php echo $id; ?>" class="btn-secondary" >Update Admin</a>
<a href="<?php echo SITEURL; ?>admin/delete-admin.php?id=<?php echo $id; ?>" class="btn-danger" >Delete Admin</a>
</td>
</tr>
<?php
}
}
else
{
//Wir haben keine Daten in der Datenbank
}
}
?>
</table>
<!-- Button Ende -->
</div>

Answer 1

Has been fixed, used this code for Sorting and switching through Menus
<html>
<head>
<title></title>
</head>
<body>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<select name='kwlist'>
<option value="">--- KW wählen ---</option>
<?php
$sql = "SELECT KW, Year from tbl_food ORDER BY `tbl_food`.`Year`, `tbl_food`.`KW` ASC LIMIT 3;";
$res = mysqli_query($conn, $sql);
$count= mysqli_num_rows($res);
if($count>0)
{
while($row=mysqli_fetch_assoc($res))
{
$KW = $row['KW'];
$year = $row['Year'];
echo '<option value="'.$KW.'/'.$year.'">'.$KW.' / '.$year.'</option>';
}
}
?>
</select>
<input type="submit" name="Submit" value="Auswählen" />
</form>
</body>
</html>
<?php
//Sortiert Menüs nach KW max 1 Woche vor und 1 Woche rückblickend
if(isset($_POST['kwlist']) && $_POST['kwlist'] != "")
{
$kwyear = explode("/", $_POST['kwlist']);
//echo $kwyear[0]; // KW
//echo $kwyear[1]; // Jahr
$sql = "SELECT * FROM tbl_food WHERE `KW` =$kwyear[0] AND `Year` =$kwyear[1]";
}
else
{
$actual_kw = date('W');
$actual_year = date('Y');
$sql = "SELECT * FROM tbl_food WHERE `KW` = $actual_kw AND `Year` = $actual_year";
}