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Base 64 Attachment in PHP Mail() not working

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I got a script which sends out an automated email when a function runs. I want to be able to send the HTML email along with a PDF attachment. I know I need to encode the file in to Base64 however I am just getting base64 code attached to the bottom of my email. I assume it's something to do with the mime stuff. Anyone see the issue?

    $to = '[email protected]';

    $subject = 'test!';

    $file = file_get_contents("files/CAPS-Standing-Order.pdf");
    $encoded_file = chunk_split(base64_encode($file));

    // message
    $boundary = md5("sanwebe");

    $message = 'Hello';

    // To send HTML mail, the Content-type header must be set
    $headers  = 'MIME-Version: 1.0' . "\r\n";
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";

    // Additional headers
    $headers .= 'From: CAPS Consortium <[email protected]>' . "\r\n";

    $message .= "--$boundary\r\n";
    $message .="Content-Type: pdf; name=\"CAPS-Standing-Order.pdf\"\r\n";
    $message .="Content-Disposition: attachment; filename=\"CAPS-Standing-Order.pdf\"\r\n";
    $message .="Content-Transfer-Encoding: base64\r\n";
    $message .="X-Attachment-Id: ".rand(1000,99999)."\r\n\r\n";
    $message .= $encoded_file; 

    // Mail it
    mail($to, $subject, $message, $headers);
like image 753
Ryan Avatar asked Mar 06 '26 20:03

Ryan


1 Answers

<?php

$file = file_get_contents("files/CAPS-Standing-Order.pdf");
$encoded_file = chunk_split(base64_encode($file));

$attachments[] = array(
    'name' => 'CAPS-Standing-Order.pdf', // Set File Name
    'data' => $encoded_file, // File Data
    'type' => 'application/pdf', // Type
    'encoding' => 'base64' // Content-Transfer-Encoding
);

$this->sendMail("[email protected]", "Hello", "test!", $attachments); 
// Send the actual mail and include the attachments

The function I made to send cleaner mail

<?php
function sendMail($email = "", $text = "", $subject = "", $attachments = array()) {
    if(!$email || !$text) {
        return false;
    }

    $headers   = array();
    $headers[] = "To: {$email}";
    $headers[] = "From: CAPS Consortium <[email protected]>";
    $headers[] = "Reply-To: CAPS Consortium <[email protected]>";
    $headers[] = "Subject: {$subject}";
    $headers[] = "X-Mailer: PHP/".phpversion();

    $headers[] = "MIME-Version: 1.0";

    if(!empty($attachments)) {
        $boundary = md5(time());
        $headers[] = "Content-type: multipart/mixed;boundary=\"".$boundary."\"";
        // Have attachment, different content type and boundary required.
    } else {
        $headers[] = "Content-type: text/html; charset=UTF-8";
    }

    $html = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
        <head>
            <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
            <title>CAPS Consortium</title>
            <style>table { border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt; }</style>
        </head>
        <body style="font-family: arial;" width="100%">
            [text]
        </body>
    </html>';

    $generated = date('jS M Y H:i:s');
    $subject = ($subject ? $subject : 'Default Subject');
    $message = $html;

    $message = str_replace("[text]", $text, $message);

    if(!empty($attachments)) {
        $output   = array();
        $output[] = "--".$boundary;
        $output[] = "Content-type: text/html; charset=\"utf-8\"";
        $output[] = "Content-Transfer-Encoding: 8bit";
        $output[] = "";
        $output[] = $message;
        $output[] = "";
        foreach($attachments as $attachment) {
            $output[] = "--".$boundary;
            $output[] = "Content-Type: ".$attachment['type']."; name=\"".$attachment['name']."\";";
            if(isset($attachment['encoding'])) {
                $output[] = "Content-Transfer-Encoding: " . $attachment['encoding'];
            }
            $output[] = "Content-Disposition: attachment;";
            $output[] = "";
            $output[] = $attachment['data'];
            $output[] = "";
        }
        return mail($email, $subject, implode("\r\n", $output), implode("\r\n", $headers));
    } else {
        return mail($email, $subject, $message, implode("\r\n", $headers));
    }

}

Hopefully this helps. Shouldn't require too much explanation as it's pretty much what you have, just cleaner and easier to maintain.

like image 141
James Lalor Avatar answered Mar 09 '26 09:03

James Lalor