کدتونو به صورت زیر تغییر بدید و اجرا کنید
$connreg = new PDO("mysql:host=localhost;dbname=crmtisphone;charset=utf8","root","");
$connreg->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$fname = $_POST['fname'];
$lname =$_POST['lname'];
$email = $_POST['emailmem'];
$numphone = $_POST['telnum'];
$memAddr = $_POST['addrmem'];
$username = $_POST['username'];
$password = $_POST['password'];
if(isset($_POST['submit'])) {
$query = "insert into members VALUES (5,$fname,$lname,$email,$numphone,$memAddr,$username,$password,'0')";
$result = $connreg->exec($query