# How to mail HTML content as the email body and a QR code attachment with PHP mail() (using TCPDF)

### First of all, declare this at the top of the page:

require_once('yourPATH/TCPDF/tcpdf_barcodes_2d.php');

***yourPATH*** depends on the path where you installed TCPDF. It is a dot (.) in the current file directory, and two dots (.\.) if it is on the previous directory.

### Then declare the variable you want to send html code as the text of the e-mail:

/*---------------- HTML Start -----------------*/
$html = <<<EOF

    ...the content...

EOF;
/*---------------- HTML End -------------------*/

***...the content...*** must be presented in HTML

### Then generate the QRcode:

/*---------------- QR Code Generate Start -----------------*/
$style = array(
    'border' => 2,
    'vpadding' => 'auto',
    'hpadding' => 'auto',
    'fgcolor' => array(0,0,0),
    'bgcolor' => false, //array(255,255,255)
    'module_width' => 1, // width of a single module in points
    'module_height' => 1 // height of a single module in points
);
$barcodeobj = new TCPDF2DBarcode('$URL', 'QRCODE,M');
$file_name = "qrCode.png";
$content = $barcodeobj->getBarcodePngData();
$encoded_content = chunk_split(base64_encode($content));
/*---------------- QR Code Generate End -------------------*/

The variable ***\$URL*** have to be define by yourself

### The last part of the code that sends the email:

/*---------------- Sent Mail Start -----------------*/
$subject = "...Subjet...";
$subject = "=?UTF-8?B?".base64_encode($subject)."?=";
$attach_filename = date("Y-m-d") . ".html";

$emailBody = $html;

$attachment = $encoded_content;

$boundary = uniqid("");

$headers = "From: $from
To: $to
Content-type: multipart/mixed; boundary=\"$boundary\"";

$emailBody =  "--$boundary
Content-type: text/html; name=$attach_filename
Content-disposition: inline; filename=$attach_filename
Content-transfer-encoding: 8bit

$emailBody

--$boundary
Content-type: image/png; name=$file_name
Content-disposition: attachment; filename=$file_name
Content-transfer-encoding: base64\r\n

$attachment

--$boundary--";

mail($email, $subject, $emailBody, $headers);
/*---------------- Sent Mail End -------------------*/

The ***\$from*** and ***\$to*** in the code are variables that need to be set values by yourself, and they respectively represent where they are sent from (you can customize at will) and where to send.