Va dentro de un documento html, por si preguntan.
Código PHP:
<table>
<tr><td>
<?
/**
* User has already logged in, so display relavent links, including
* a link to the admin center if the user is an administrator.
*/
if($session->logged_in){
echo "<h1>Logged In</h1>";
echo "Welcome <b>$session->username</b>, you are logged in."
."[<a href=\"userinfo.php?user=$session->username\">My Account</a>]"
."[<a href=\"useredit.php\">Edit Account</a>]";
if($session->isAdmin()){
echo "[<a href=\"admin/admin.php\">Admin Center</a>]";
}
echo "[<a href=\"process.php\">Logout</a>]";
}
else{
?>
<?
/**
* User not logged in, display the login form.
* If user has already tried to login, but errors were
* found, display the total number of errors.
* If errors occurred, they will be displayed.
*/
if($form->num_errors > 0){
echo "<font size=\"2\" color=\"#ff0000\">".$form->num_errors." error(s) found</font>";
}
?>
<form action="process.php" method="POST">
<table align="left" border="0" cellspacing="0" cellpadding="3">
<tr><td>Username:</td><td><input type="text" name="user" maxlength="30" value="<? echo $form->value("user"); ?>"></td><td><? echo $form->error("user"); ?></td></tr>
<tr><td>Password:</td><td><input type="password" name="pass" maxlength="30" value="<? echo $form->value("pass"); ?>"></td><td><? echo $form->error("pass"); ?></td></tr>
<tr><td colspan="2" align="left"><input type="checkbox" name="remember" <? if($form->value("remember") != ""){ echo "checked"; } ?>>
<font size="2">Remember me next time
<input type="hidden" name="sublogin" value="1">
<input type="submit" value="Login"></td></tr>
<tr><td colspan="2" align="left"><font size="2">[<a href="forgotpass.php">Forgot Password?</a>]</font></td></tr>
<tr><td colspan="2" align="left">Not registered? <a href="register.php">Sign-Up!</a></td></tr>
</table>
</form> 
