<?php
function passwordEncryptor($password){
$options = [
        'cost' => 14,
    ];
    return password_hash($password, PASSWORD_BCRYPT, $options);
}

?>

<?php
    $email = mysqli_real_escape_string($dbcon, $_POST['email']);
    $password = passwordEncryptor($_POST['password']);

    $query = "SELECT * FROM pcd_users WHERE email='$email' AND password='$password'";
    $do_query = @mysqli_query($dbcon, $query);
    if($do_query){
        if(mysqli_num_rows($do_query) != 1){
            $errors[] = "E-mail ou Palavra-Passe incorretos." . $query;
        }else{
            while ($row = mysqli_fetch_array($do_query, MYSQLI_ASSOC)) {
                mysqli_free_result($do_query);
                session_start();
                $_SESSION['userNum'] = $row['num'];
                header("Location: ./page.php");
                exit();
            }
        }
    }else{
        $errors[] = "Erro: " . mysqli_error($do_query);
    }
    mysqli_free_result($do_query);
?>

SELECT * FROM pcd_users WHERE email='teste@teste.com' AND password='$2y$14$O6iOBsAyv0JqwGudQhKPB.f68nLthfoMlJUU8n8zRuXxFJubhe7CO'