Error Messages not displaying

My error codes are not working ,

i declared them as follow 

if(isset($_POST['login_submit'])){
						
						$query = mysql_query("SELECT id FROM users WHERE login_email = '". $_POST['login_email'] ."'") or die(mysql_error());
							$email_check = mysql_num_rows($query);
							$email_check_data = mysql_fetch_array($query);	
							if(empty($_POST['login_email']) || empty($_POST['login_password'])){							
							echo "<div class=\"notification warning\">
										  Please fill in all the fields below
									  </div>";
								
							} elseif($email_check == 0) {
								
								echo "<div class=\"notification error\">
										  Email address or password . Please check your email!
									  </div>";

is there anything wrong ?

If the fields are empty or i input no email or password no erros displayed