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Send Mail with File Attachment using PHP

In this post I'm going to show you how we can send mail with file attachment using PHP mail function. To do this we need to encode file into base64 encoding system using PHP base64_encode function and add it to PHP mail header parameter with MIME.

Email Function
function email($mail_from, $from_name, $mail_to, $subject, $message, $file){
    $file_name = basename($file); // Get file name
    $data = file_get_contents($file); // Read file contents 
    $file_contents = chunk_split(base64_encode($data)); // Encode file data into base64
    $uid = md5(time()); // Create unique boundary from timestamps 
    $headers = array();
    $headers[] = "MIME-Version: 1.0";
    $headers[] = "From: {$from_name}<{$mail_from}>";
    $headers[] = "Reply-To: {$mail_from}";
    $headers[] = "Content-Type: multipart/mixed; boundary=\"{$uid}\"";
    $headers[] = "This is a multi-part message in MIME format.";
    $headers[] = "--{$uid}";
    $headers[] = "Content-type:text/plain; charset=iso-8859-1"; // Set message content type
    $headers[] = "Content-Transfer-Encoding: 7bit";
    $headers[] = $message; // Dump message
    $headers[] = "--{$uid}";
    $headers[] = "Content-Type: application/octet-stream; name=\"{$file_name}\""; // Set content type and file name
    $headers[] = "Content-Transfer-Encoding: base64"; // Set file encoding base
    $headers[] = "Content-Disposition: attachment; filename=\"{$file_name}\""; // Set file Disposition
    $headers[] = $file_contents; // Dump file
    $headers[] = "--{$uid}--"; //End boundary
    // Send mail with header information
    if (mail($mail_to, $subject, '', implode("\r\n", $headers) ))
        return true;

$from = "";
$name = "W3Bees";
$to = "";
$subject = "My mail subject";
$message = "My message";
$file = 'path/to/file';
if(email($from, $name, $to, $subject, $message, $file)){
    echo "Success!";
    echo "Error!";


  1. I am getting that error (Bad parameters to mail() function, mail not sent. ) when I am dumping the content of my file in the header (Line 21) ? why ??

    1. I'm so sorry. I made a mistake on email function. I updated the source. I hope now it will be work now.

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  3. I have read your blog its very attractive and impressive. I like it your blog.

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