Nsryjdtyk

The following script submits a form. I want a more php 7/cleaner way to do the same exact thing. The functions are being passed in the object oriented User.php file.

How would a senior php developer refactor this code.

index.php

$username = htmlentities(trim($_POST['txt_username']));

$unpass = htmlentities(trim($_POST['txt_password']));

$password = password_hash($unpass, PASSWORD_BCRYPT, ['cost' => 12] );

$unemail = $_POST['txt_email'];

$email = filter_var($unemail, FILTER_VALIDATE_EMAIL);





if (isset($_POST['btn_signup']) ){



    if($guest->check_user_exists($username)){

        $errors= "Username Already Taken";

    }

    elseif(strlen($username) < 6){

      $errors = "Username must be at least 6 characters";

    }

    elseif(strlen($unpass) < 6){

      $errors = "Password must be at least 6 characters";

    }



    elseif($guest->check_email_exists($email)){

        $errors= "Email Already Taken";

    }



    elseif($guest->signup($email,$password,$username)){

        header("Location:index.php?registered");

        die('didnt redirect');

    }

    else{

      $errors= "Invalid Entry";

    }





}