Open and test the application 1. Run the application that’s stored in the ex_starts/ch15_ex1 directory. This exercise has modified requirements comparing with the exercise demonstrated during the...

ch/index.php
require_once('model/fields.php');
require_once('model/validate.php');
$validate = new Validate();
$fields = $validate->getFields();
$fields->addField('email', 'Must be a valid email address.');
$fields->addField('password', 'Must be at least 12 characters.');
$fields->addField('verify');
$fields->addField('first_name');
$fields->addField('last_name');
$fields->addField('address');
$fields->addField('city');
$fields->addField('state', 'Use 2 character abbreviation.');
$fields->addField('zip', 'Use Canadian ZIP code.');
$fields->addField('phone', 'Use 999-999-9999 format.');
$fields->addField('dob', 'Use dd/mm/yyyy format.');
$fields->addField('card_type');
$fields->addField('card_number', 'Enter number with or without dashes.');
$fields->addField('exp_date', 'Use mm/yyyy format.');
$action = filter_input(INPUT_POST, 'action');
if ($action === NULL) {
$action = 'reset';
} else {
$action = strtolower($action);
}
switch ($action) {
case 'reset':
$email = '';
$password = '';
$verify = '';
$firstName = '';
$lastName = '';
$address = '';
$city = '';
$state = '';
$zip = '';
$phone = '';
$cardType = '';
$cardNumber = '';
$cardDigits = '';
$expDate = '';
$dob = '';
include 'view/register.php';
break;
case 'register':
// Copy form values to local variables
$email = trim(filter_input(INPUT_POST, 'email'));
$password = filter_input(INPUT_POST, 'password');
$verify = filter_input(INPUT_POST, 'verify');
$firstName = trim(filter_input(INPUT_POST, 'first_name'));
$lastName = trim(filter_input(INPUT_POST, 'last_name'));
$address = trim(filter_input(INPUT_POST, 'address'));
$city = trim(filter_input(INPUT_POST, 'city'));
$state = filter_input(INPUT_POST, 'state');
$zip = filter_input(INPUT_POST, 'zip');
$phone = filter_input(INPUT_POST, 'phone');
$cardType = filter_input(INPUT_POST, 'card_type');
$cardNumber = filter_input(INPUT_POST, 'card_number');
$cardDigits = preg_replace('/[^[:digit:]]/', '', $cardNumber);
$expDate = filter_input(INPUT_POST, 'exp_date');
$dob = filter_input(INPUT_POST, 'dob');
// Validate form data
$validate->email('email', $email);
$validate->password('password', $password);
$validate->verify('verify', $password, $verify);
$validate->text('first_name', $firstName);
$validate->text('last_name', $lastName);
$validate->text('address', $address);
$validate->text('city', $city);
$validate->state('state', $state);
$validate->zip('zip', $zip);
$validate->phone('phone', $phone);
$validate->cardType('card_type', $cardType);
$validate->cardNumber('card_number', $cardDigits, $cardType);
$validate->expDate('exp_date', $expDate);
$validate->birthdate('dob', $dob);
// Load appropriate view based on hasErrors
if ($fields->hasErrors()) {
include 'view/register.php';
} else {
include 'view/success.php';
}
break;
}
?>
ch/main.css
html {
background-color: rgb(192, 192, 192);
}
body {
font-family: Arial, Helvetica, sans-serif;
width: 900px;
margin: 0 auto;
padding: 0 2em;
background-color: white;
border: 1px solid black;
}
header {
border-bottom: 2px solid black;
padding: .5em 0;
}
header h1 {
color: black;
}
main {
}
aside {
float: left;
width: 150px;
}
section {
float: left;
width: 500px;
}
footer {
clear: both;
border-top: 2px solid black;
}
footer p {
text-align: right;
font-size: 80%;
}
h1 {
font-size: 150%;
margin: 0;
padding: .5em 0 .25em;
}
h2 {
font-size: 120%;
margin: 0;
padding: .75em 0 0;
}
h1, h2 {
color: rgb(208, 133, 4);
}
/* styles for the form */
fieldset {
margin: 1em;
padding-top: 1em;
}
legend {
font-weight: bold;
font-size: 85%;
}
label {
float: left;
width: 10em;
text-align: right;
margin-top: .25em;
margin-bottom: .5em;
}
input, select {
margin-left: 0.5em;
margin-bottom: 0.5em;
width: 14em;
}
br {
clear: both;
}
span {
vertical-align: middle;
}
.error {
color: red;
}
.notice {
color: red;
font-size: 67%;
text-align: right;
}
ch/model/fields.php
class Field {
private $name;
private $message = '';
private $hasError = false;
public function __construct($name, $message = '') {
$this->name = $name;
$this->message = $message;
}
public function getName() { return $this->name; }
public function getMessage() { return $this->message; }
public function hasError() { return $this->hasError; }
public function setErrorMessage($message) {
$this->message = $message;
$this->hasError = true;
}
public function clearErrorMessage() {
$this->message = '';
$this->hasError = false;
}
public function getHTML() {
$message = htmlspecialchars($this->message);
if ($this->hasError()) {
return '' . $message . '';
} else {
return '' . $message . '';
}
}
}
class Fields {
private $fields = array();
public function addField($name, $message = '') {
$field = new Field($name, $message);
$this->fields[$field->getName()] = $field;
}
public function getField($name) {
return $this->fields[$name];
}
public function hasErrors() {
foreach ($this->fields as $field) {
if ($field->hasError()) { return true; }
}
return false;
}
}
?>
ch/model/validate.php
class Validate {
private $fields;
public function __construct() {
$this->fields = new Fields();
}
public function getFields() {
return $this->fields;
}
// Validate a generic text field
public function text($name, $value,
$required = true, $min = 1, $max = 255) {
// Get Field object
$field = $this->fields->getField($name);
// If field is not required and empty, remove errors and exit
if (!$required && empty($value)) {
$field->clearErrorMessage();
return;
}
// Check field and set or clear error message
if ($required && empty($value)) {
$field->setErrorMessage('Required.');
} else if (strlen($value) < $min) {
$field->setErrorMessage('Too short.');
} else if (strlen($value) > $max) {
$field->setErrorMessage('Too long.');
} else {
...