0
$check=mysqli_query("select * from signup where email='$email");
$rs = mysqli_num_rows($check);
if ($rs == 0) {
echo "exist";
}
else{
$sql = "INSERT INTO signup (username, email, password)
VALUES ('$name', '$email', '$password')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
}
}