Send attachments in Mail using PHP

I want to send file attachments in mail using PHP. Below is code I am using which is working but each time loop gets executed the mails are going in separate attachments.

/*Uploading docs Array*/
$otherdoc_name = array($_FILES[ 'otherdoc' ][ 'name' ]);
$otherdocCount = count( $_FILES[ 'otherdoc' ][ 'name' ]);         
// print_r($otherdocCount); exit();
for ( $i = 0; $i < $otherdocCount; $i++ ) {
    //Get the temp file path
    $tmpFilePath = $_FILES[ 'otherdoc' ][ 'tmp_name' ][ $i ];
    $i_names = $_FILES[ 'otherdoc' ][ 'name' ][ $i ];
    $i_sizes = $_FILES[ 'otherdoc' ][ 'size' ][ $i ];
    $i_errors = $_FILES[ 'otherdoc' ][ 'error' ][ $i ];
    $i_tmp_names = $_FILES[ 'otherdoc' ][ 'tmp_name' ][ $i ];
    $i_types = $_FILES[ 'otherdoc' ][ 'type' ][ $i ];
    $exts = pathinfo( $i_names, PATHINFO_EXTENSION );
    $msgs = '';

    if ( $i_errors == 0 ) {
        if ( $i_sizes > 0 ) {
            $otherdoc_name[$i] = rand() . '.' . $exts;
            $paths = $folder . $otherdoc_name[$i];
            $uploads = copy( $i_tmp_names, $paths );
            if ( $uploads ) {
                $otherdoc_name[$i] = $otherdoc_name[$i];
                /*Mail Function*/
                if(isset($otherdoc_name))
                {
                    $from_email         = '[email protected]'; //from mail, it is mandatory with some hosts
                    $recipient_email    = '[email protected]'; //recipient email (most cases it is your personal email)

                    //Capture POST data from HTML form and Sanitize them, 
                    $sender_name    = filter_var($_POST["sender_name"], FILTER_SANITIZE_STRING); //sender name
                    $reply_to_email = filter_var($_POST["sender_email"], FILTER_SANITIZE_STRING); //sender email used in "reply-to" header
                    $subject        = filter_var($_POST["subject"], FILTER_SANITIZE_STRING); //get subject from HTML form
                    $message        = filter_var($_POST["message"], FILTER_SANITIZE_STRING); //message

                    /* //don't forget to validate empty fields 
                    if(strlen($sender_name)<1){
                        die('Name is too short or empty!');
                    } 
                    */

                    //Get uploaded file data
                    $file_tmp_name    = $tmpFilePath;
                    $file_name        = $i_names;
                    $file_size        = $i_sizes;
                    $file_type        = $i_types;
                    $file_error       = $i_errors;

                    if($file_error > 0)
                    {
                        die('Upload error or No files uploaded');
                    }
                    //read from the uploaded file & base64_encode content for the mail
                    $handle = fopen($file_tmp_name, "r");
                    $content = fread($handle, $file_size);
                    fclose($handle);
                    $encoded_content = chunk_split(base64_encode($content));

                        $boundary = md5("sanwebe");
                        //header
                        $headers = "MIME-Version: 1.0\r\n"; 
                        $headers .= "From:".$from_email."\r\n"; 
                        $headers .= "Reply-To: ".$reply_to_email."" . "\r\n";
                        $headers .= "Content-Type: multipart/mixed; boundary = $boundary\r\n\r\n"; 

                        //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: $file_type; name=".$file_name."\r\n";
                        $body .="Content-Disposition: attachment; filename=".$file_name."\r\n";
                        $body .="Content-Transfer-Encoding: base64\r\n";
                        $body .="X-Attachment-Id: ".rand(1000,99999)."\r\n\r\n"; 
                        $body .= $encoded_content; 

                    $sentMail = @mail($recipient_email, $subject, $body, $headers);
                    if($sentMail) //output success or failure messages
                    {       
                        echo 'Thank you for your email';
                    }else{
                        die('Could not send mail.');  
                    }

                }
                /* End Mail Function*/
            } else {
                $otherdoc_name[$i] = '';
            }

        } else {
            $otherdoc_name[$i] = '';
        }

    } else {
        $otherdoc_name[$i] = '';
    }
}

I am uploading this files to one folder at present now. Can I send files without uploading directly ?

I want all files should be sent as one mail. Or any other different logic suggestions for me. Please help me out.

Solution

Please use PHPMailer, that would be really easy to integrate it into your application.

Download the PHPMailer script from here: http://github.com/PHPMailer/PHPMailer

Extract the archive and copy the src folder to a convenient place in your project.

Now, sending emails with attachments incredibly easy:

require 'phpmailer/src/PHPMailer.php';

use PHPMailer\PHPMailer\PHPMailer;

$email = new PHPMailer();
$email->From      = '[email protected]';
$email->FromName  = 'Your Name';
$email->Subject   = 'Message Subject';
$email->Body      = $bodytext;
$email->addAddress('[email protected]');

$email->addAttachment('PATH_TO_YOUR_FILE_HERE');

return $email->send();

It's just that one line: $email->addAttachment();