PHP and MySQL®: Create-Modify-Reuse

1.7. Registering a New User

With the directory structure laid out and enough of the support code written, the focus can now move to registering a new user. The following code can be saved in the public_files folder as register.php. Figure 1-2 shows the page viewed in a browser.

Figure 1-2. Figure 1-2

<?php
// include shared code
include '../lib/common.php';
include '../lib/db.php';
include '../lib/functions.php';
include '../lib/User.php';

// start or continue session so the CAPTCHA text stored in $_SESSION is
// accessible
session_start();
header('Cache-control: private');

// prepare the registration form's HTML
ob_start();
?>
<form method="post"
 action="<?php echo htmlspecialchars($_SEVER['PHP_SELF']); ?>">
 <table>
  <tr>
   <td><label for="username">Username</label></td>
   <td><input type="text" name="username" id="username"
    value="<?php if (isset($_POST['username']))
    echo htmlspecialchars($_POST['username']); ?>"/></td>
  </tr><tr>
   <td><label for="password1">Password</label></td>
   <td><input type="password" name="password1" id="password1"
    value=""/></td>
  </tr><tr>

<td><label for="password2">Password Again</label></td> <td><input type="password" name="password2" id="password2" value=""/></td> </tr><tr> <td><label for="email">Email Address</label></td> <td><input type="text" name="email" id="email" value="<?php if (isset($_POST['email'])) echo htmlspecialchars($_POST['email']); ?>"/></td> ...