将电子邮件地址放在PHP变量中以防止电子邮件收集者安全吗？

Question

Is it safe to use either of these lines without having the emails being picked up by email harvesters?

My email: <a href="mailto:<?php echo '[e-mail]'; ?>"><?php echo '[e-mail]'; ?></a>

or this one with variables

<?php $email = '[e-mail]'; ?>
My email: <a href="mailto:<?php echo $email; ?>"><?php echo $email; ?></a>

or does it even matter for as long as it's generated by PHP then it's safe?

Answer 1

Those will provide no protection at all. PHP is run on the server side. It will generate an HTML document and send it to the client. From the perspective of a bot or a user this is exactly the same as if you had just put the email address in a normal HTML document:

My email: <a href="mailto:[e-mail]">[e-mail]</a>