base64_encode

Example 1366. Use base64_encode() to create a simple MIME mail function

function simple_mime_mail ($to, $subject, $message) {
    // Find out how many arguments were passed to the function
    $num_args = func_num_args ();

    // Create a boundary string - boundary strings let the mail client
    // determine where the messages parts start and end.
    $mime_boundary = md5 (microtime() . $to . $subject);

    // Create the MIME headers used to separate the parts of the MIME message
    $mime_header   = "--$mime_boundary\r\n";
    $mime_header  .= "Content-type:text/plain\r\n";
    $mime_header  .= "Content-Transfer-Encoding:base64\r\n\r\n";
    
    // Start assembling the content of the MIME message
    // ...beginning with the overall header for the message
    $mime_content  = "Content-type:multipart/mixed; boundary=$mime_boundary\r\n\r\n";
    $mime_content .= "This is a MIME encoded message.\r\n\r\n";
    
    // Base64-encode the message
    // Use chunk_split() to wrap the lines to a reasonable length
    $message       = chunk_split (base64_encode ($message));
    
    // Add a set of MIME headers and the encoded message to the MIME message
    $mime_content .= "$mime_header$message\r\n";
    
    // Loop through any extra arguments to the function
    // Extra arguments should contain the names of files to attach to the message
    // Start grabbing arguments after the $to, $subject, and $message arguments.
    for ($offset = 3; $offset < $num_args; ++$offset) {
    
        // Retrieve a filename from the argument list
        $filename = func_get_arg ($offset);
        
        // Make sure that the argument is a valid filename
        if (! is_file ($filename)) {
            trigger_error ("File <tt>$filename</tt> is not a valid filename or is inaccessible");
            continue;
        }

        // Dump the contents of the file into an array
        // Join the array into one piece of data
        // Encode the data
        // Wrap the lines to a reasonable length
        $attachment = chunk_split (base64_encode (implode ('', file ($filename))));

        $mime_content .= "$mime_header$attachment\r\n";
    }

    return mail ($to, $subject, '', $mime_content);
}

// WARNING: This script will mail the contents of the file containing this script to the email
// address specified.  Don't include anything in this file that you would not want the world to see.
simple_mime_mail ('yourself@somehost.tld', 'Test Script', 'Testing 1, 2, 3', $PATH_TRANSLATED);
?>