1 <?php
 2 spl_autoload_register(function ($class_name) { // https://www.php.net/manual/en/language.oop5.autoload.php
 3     include $class_name . '.class.php';
 4 });
 5 
 6 $firstName = $_POST['fname'];
 7 if(isset($_POST['mname'])){
 8     $middleName = $_POST['mname'];
 9 }
10 $lastName = $_POST['lname'];
11 
12 //concatonating all the names into one string in order to do only one check for all the names
13 $name = $firstName.' '.$middleName.' '.$lastName;
14 //https://www.w3schools.com/php/php_form_url_email.asp
15 if (!preg_match("/^[a-zA-Z-' ]*$/",$name)) {
16     exit('<script>alert("Invalid Name, please try again"); history.back()</script>');
17 }
18 
19 //checking the email input (in addition to having the built in required attribute)
20 $email = $_POST["email"];
21 $email = filter_var($email, FILTER_SANITIZE_EMAIL);
22 if(!filter_var($email, FILTER_VALIDATE_EMAIL)) {
23     exit('<script>alert("Invalid Email, please try again"); history.back()</script>');
24 }
25 
26 //taken from https://www.abstractapi.com/guides/php-validate-phone-number
27 //preg_match/^[0-9]{8,12}+$/ will check if all the characters are integers (between 0 and 9) and if there are between 8 and 12 characters
28 if(!preg_match('/^[0-9]{8,12}+$/', $_POST['phone'])) {
29     exit('<script>alert("Phone number must only contain numbers and be bewteen 8 to 12 digits"); history.back()</script>');
30 }  
31 
32 //concatonating country code and phone number into one full phone number
33 $phoneNumber = "+".$_POST['countryCode'].$_POST['phone'];
34 
35 $nationality = $_POST['nationality'];
36 
37 //first or: departure minus the arrival date, if it equates to 0 days or a negative number (less than 1), it is invalid 
38 //second or: checking if the current date is greater than (after) the departure date, meaing it is invalid
39 if((strtotime($_POST['departureDate']) - strtotime($_POST['arrivalDate'])) < 1 || (strtotime(date("Y-m-d")) > strtotime($_POST['arrivalDate']))){
40     exit('<script>alert("Invalid dates, please try again"); history.back()</script>');
41 }
42 
43 $arrivalDate = $_POST['arrivalDate'];
44 $departureDate = $_POST['departureDate'];
45 $hotelStandard = $_POST['hotelStandard'];
46 $IPAddress = $_SERVER['REMOTE_ADDR'];
47 
48 $rating = $_POST['hotelStandard'];
49 
50 $customer = new Customer($firstName, $middleName, $lastName, $email, $phoneNumber, $nationality, $IPAddress);
51 $inquiry = new Inquiry(date("Y/m/d h:i:s"), $IPAddress, $arrivalDate, $departureDate, $rating,);
52 $inquiry->setCustomer($customer);
53 
54 //storing the user-defined objects in the CPU to be persistant
55 apcu_store('customer', $customer);
56 apcu_store('inquiry', $inquiry);
57 
58 //redirecting to the next page
59 header("Location: destinationpage.html");
60 die();
61