How to send an attachment to your email as pdf using php?

Hi Team

I have a code that attempts to store data to the database record it does but my problem i cant make a logic of making a pdf as an attachment to the email and need some help based on what i have written.

 

// Logic of current code

if(isset($_POST['button']) && isset($_FILES['attachment']))
{
	$from_email		 = '[email protected]'; //from mail, sender email address
	$recipient_email = '[email protected]'; //recipient email address
	
	//Load POST data from HTML form
	$sender_name = $_POST["sender_name"]; //sender name
	$reply_to_email = $_POST["sender_email"]; //sender email, it will be used in "reply-to" header
	$subject	 = $_POST["subject"]; //subject for the email
	$message	 = $_POST["message"]; //body of the email

	/*Always remember to validate the form fields like this
	if(strlen($sender_name)<1)
	{
		die('Name is too short or empty!');
	}
	*/
	//Get uploaded file data using $_FILES array
	$tmp_name = $_FILES['attachment']['tmp_name']; // get the temporary file name of the file on the server
	$name	 = $_FILES['attachment']['name']; // get the name of the file
	$size	 = $_FILES['attachment']['size']; // get size of the file for size validation
	$type	 = $_FILES['attachment']['type']; // get type of the file
	$error	 = $_FILES['attachment']['error']; // get the error (if any)

	//validate form field for attaching the file
	if($error > 0)
	{
		die('Upload error or No files uploaded');
	}

	//read from the uploaded file & base64_encode content
	$handle = fopen($tmp_name, "r"); // set the file handle only for reading the file
	$content = fread($handle, $size); // reading the file
	fclose($handle);				 // close upon completion

	$encoded_content = chunk_split(base64_encode($content));
	$boundary = md5("random"); // define boundary with a md5 hashed value

	//header
	$headers = "MIME-Version: 1.0\r\n"; // Defining the MIME version
	$headers .= "From:".$from_email."\r\n"; // Sender Email
	$headers .= "Reply-To: ".$reply_to_email."\r\n"; // Email address to reach back
	$headers .= "Content-Type: multipart/mixed;"; // Defining Content-Type
	$headers .= "boundary = $boundary\r\n"; //Defining the Boundary
		
	//plain text
	$body = "--$boundary\r\n";
	$body .= "Content-Type: text/plain; charset=ISO-8859-1\r\n";
	$body .= "Content-Transfer-Encoding: base64\r\n\r\n";
	$body .= chunk_split(base64_encode($message));
		
	//attachment
	$body .= "--$boundary\r\n";
	$body .="Content-Type: $type; name=".$name."\r\n";
	$body .="Content-Disposition: attachment; filename=".$name."\r\n";
	$body .="Content-Transfer-Encoding: base64\r\n";
	$body .="X-Attachment-Id: ".rand(1000, 99999)."\r\n\r\n";
	$body .= $encoded_content; // Attaching the encoded file with email
	
	$sentMailResult = mail($recipient_email, $subject, $body, $headers);

	if($sentMailResult ){
		echo "
File Sent Successfully.
";
		// unlink($name); // delete the file after attachment sent.
	}
	else{
		die("Sorry but the email could not be sent.
					Please go back and try again!");
	}
}