why thisphp code if else condition is not working please help me : CHECK THE IF ELSE STATEMENT ON after if(!empty){} section.
     
    <form action="first.php" method ="post">


	 <input type="text" name="username" >Username</br>
	 <input type="password" name="password" >Password</br>
	 <input type="submit"  value="Submit"></br>



</form>


<?php
if(isset($_POST['username'] )&& isset($_POST['password'])){


	if(!empty($user) && !empty($pass)){

		$user = $_POST['username'];
		$pass = $_POST['password'];
		
		if($user ==="habib"  && $pass === "1234"){

			echo $user;
			echo $pass;

		}else{

			echo "wrong password and username";
		}
	}
}
 

?>
