Page 592 - Beginning PHP 5.3

Part III: Using PHP in Practice
}

?>
</body>
</html>

Run the script by visiting its URL in your Web browser. In the form that appears, enter the URL of a
known Web site and click Find Links. After a short time you should see a list of all the URLs linked to
from that page, as shown in Figure 18-1.

Figure 18-1

How It Works
After displaying the XHTML page header, the script calls displayForm() to display a simple form
requesting a URL to scan. If the form has already been submitted, it is processed by calling
processForm():
displayForm();

if ( isset( $_POST[“submitted”] ) ) {
processForm();
}

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