PHP 5 in Practice

16. Email Email is the "killer app" of the Internet (though some may claim it is WWW). Amazing numbers of email messages get sent across the Internet every day. Inevitably, you will need to write code that deals with email. As is o...

16.1. Sending Email (Text/HTML/Dual Format/Inline Images/Attachments) Today many different types of email get sent. Sometimes email contains file attachments, inline images, dual format (text/HTML), and so on. Sending each of these more complicate...

16.2. Determining Whether an Email Account Exists A common web application is having users sign up for some service. Often you want to confirm whether the given email truly exists. Realistically, there is only one accurate way of determining whe...

16.3. Creating a Mass Email Mailer There are times when you may need to send out an email to many people. Perhaps your company sends out a newsletter to all its subscribers. In these cases you don't want to perform a loop of multiple calls to mail...

16.4. Implementing Basic Mailing List Software Many open source or freeware mailing list management software programs are available right now. However, they all are complicated and full of features. Normally this is a good thing; however, at times...

16.5. Protecting Email Addresses from Spam Collectors Many spammers today use harvesting software that scours websites looking for email addresses on web pages. Once found, spammers start sending spam to these addresses. It is therefore beneficial...

16.6. Creating a Watchdog Process to Send Email If a Web Page Changes There are various useful reasons to be alerted when a web page changes, and the easiest way to be notified is via email. For example, you may want to know if the home page on ...