<?php
//this is the first file where I make a select query to get some settings to use in PHPMailer function in another file which now is the code below
require_once ('dbconfig.php');//this is the db connection file the one I fail to include and as a consequence the whole mail thing fails
	$stmt = $db_con->prepare("SELECT * FROM tbl_sys");
     $stmt->execute();
	 $sysRow = $stmt->fetch(PDO::FETCH_BOTH);
	 $secure=$sysRow['secure'];
	 $host=$sysRow['host'];
	 $port=$sysRow['port'];
	 $sys_email=$sysRow['sys_email'];
	 $user_name=$sysRow['userName'];
	 $password=$sysRow['password'];
	 $sender=$sysRow['sender'];
	 $replyTo=$sysRow['replyTo'];
?>
//PHPMailer function the below settings are set according to the result set of the above piece of code
<?php
 class CV{
	function send_mail($sys_email,$message,$subject){
	  require_once('mailer/class.phpmailer.php');
	  require_once('query.php');
	  $mail = new PHPMailer();
	  $mail->IsSMTP();
	  $mail->SMTPDebug  = 1;
	  $mail->SMTPAuth   = true;
	  $mail->SMTPSecure = $secure;
	  $mail->Host       = $host;
	  $mail->Port       = $port;
	  $mail->AddAddress($sys_email);
	  $mail->Username=$user_name;
	  $mail->Password=$password;
	  $mail->SetFrom($sender);
	  $mail->AddReplyTo($replyTo,"Prassi e Ricerca");
	  $mail->addAttachment($targetPath);//this variable is defined in send mail file which is the below code
	  $mail->Subject    = $subject;
	  $mail->MsgHTML($message);
	  $mail->Send();
	}
}
?>
//send mail is the last file where I store the file to a folder on my server, save its relative path to my db and then
send the email
//here I define the class that I've used in the above piece of code
$sendCV = new CV();
//the target path variable is where the file is stored on my server and what I need to send the attachment
$targetPath = "../cv/ass_soc/".$applicantName." ".$applicantLastName.$_FILES['file']['name']; // Target path where file is to be stored
//this is where I try to send the email I omitted the variables inside the send mail function because it's irrelevant for the actual problem
$sendCV->send_mail($sys_email,$message,$subject);