add_room.php

<?php
require('inc/db_config.php');
require('inc/essentials.php');
adminLogin();

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $name = filterationData($_POST['name']);
    $area = filterationData($_POST['area']);
    $price = filterationData($_POST['price']);
    $quantity = filterationData($_POST['quantity']);
    $adult = filterationData($_POST['adult']);
    $children = filterationData($_POST['children']);
    $desc = filterationData($_POST['desc']);
    $query = "INSERT INTO `rooms`(`name`, `area`, `price`, `quantity`, `adult`, `children`, `description`) VALUES (?,?,?,?,?,?,?)";
    $values = [$name, $area, $price, $quantity, $adult, $children, $desc];

    if (insert($query, $values, 'siiiiis')) {
        $_SESSION['message'] = 'Room Added Successfully';
        header('Location: rooms.php');
    } else {
        $_SESSION['message'] = 'Server Down';
    }
}