换行符在电子邮件中显示为普通文本

Question

I have an HTML form that sends a contact mail with PHP.

Everything goes well except for the body of the message that comes from a textarea, which will be filtered with both these functions:

1: mysql_real_escape_string()

OR

2:

function clean_data($input) {

            $input = trim(htmlentities(strip_tags($input,",")));

            if (get_magic_quotes_gpc())

                $input = stripslashes($input);

            $input = mysql_real_escape_string($input);

            return $input;

        }

when I put some line breaks, it converts to real visible

Instead of showing this:

Hello,

This is a test mail.

It shows this:

Hello, This is a test mail.

If I pass the string as is without validation it works well.

Whats the problem here?

Thanks.

Answer 1

OK I found it!

after escaping I did this:

str_replace(' ', PHP_EOL, $message)

and it works now perfectly.