if(isset($_POST['button']) && isset($_FILES['attachment']))
{
$from_email = 'sender@abc.com'; //from mail, sender email address
$recipient_email = 'recipient@xyz.com'; //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 "<h3>File Sent Successfully.<h3>";
// unlink($name); // delete the file after attachment sent.
}
else{
die("Sorry but the email could not be sent.
Please go back and try again!");
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css">
<title>Send Attachment With Email</title>
</head>
<body>
<div style="display:flex; justify-content: center; margin-top:10%;">
<form enctype="multipart/form-data" method="POST" action="" style="width: 500px;">
<div class="form-group">
<input class="form-control" type="text" name="sender_name" placeholder="Your Name" required/>
</div>
<div class="form-group">
<input class="form-control" type="email" name="sender_email" placeholder="Recipient's Email Address" required/>
</div>
<div class="form-group">
<input class="form-control" type="text" name="subject" placeholder="Subject"/>
</div>
<div class="form-group">
<textarea class="form-control" name="message" placeholder="Message"></textarea>
</div>
<div class="form-group">
<input class="form-control" type="file" name="attachment" placeholder="Attachment" required/>
</div>
<div class="form-group">
<input class="btn btn-primary" type="submit" name="button" value="Submit" />
</div>
</form>
</div>
</body>
</html>
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