Hello Larry,
First of all, I'm very glad I got your book. I'm re-learning PHP from scratch and I wished I had a book like yours in the early 2000s
In chapter 6, handle_reg.php, I'm a bit troubled by the variable $age.
$age should only exist within "if ($_POST['year'] < 2016) {...}"
// Validate the year:
if (is_numeric($_POST['year']) AND (strlen($_POST['year']) == 4))
{
// Check that they were born before 2016
if ($_POST['year'] < 2016)
{
$age = 2016 - $_POST['year']; // Calculate age this year
}
else
{
print '<p class="error">Either you entered your birth year wrong or you come from the future';
$okay = false;
}
But still, you can call it like a global variable at the bottom of the page:
// If there were no errors, print a success message:
if ($okay)
{
print '<p>You have been successfully registered (but not really).</p>';
print "<p>You will turn $age this year.<p>";
print "<p>Your favorite color is a $color_type color.<p>";
}
In another programming language, I would have defined it as a global variable at the top, then update it later on. Is it a common thing in PHP?
Thanks a lot for your time.
Cheers!
