Pure PHP to Laravel conversion help

Hi everyone, would someone be willing to help me convert this code into Laravel? I have changed the few things I do recognize but the prepare and bind_params are not working/ I have managed to get it to the point of the bind_params then nothing works. I have returned the code to how it was after 3 days of frustration and I am sure there is a simplier way to do this.

public function registration()
    {
        if (isset($_POST["email"]) && isset($_POST["username"]) && isset($_POST["password1"]) && isset($_POST["password2"])) {
            $errors = array();

            $emailMaxLength = 254;
            $usernameMaxLength = 20;
            $usernameMinLength = 3;
            $passwordMaxLength = 19;
            $passwordMinLength = 5;

            $email = strtolower($_POST["email"]);
            $username = $_POST["username"];
            $password1 = $_POST["password1"];
            $password2 = $_POST["password2"];

            //Validate email
            if (preg_match('/\s/', $email)) {
                $errors[] = "Email can't have spaces";
            } else {
                if (!$this->validate_email_address($email)) {
                    $errors[] = "Invalid email";
                } else {
                    if (strlen($email) > $emailMaxLength) {
                        $errors[] = "Email is too long, must be equal or under " . strval($emailMaxLength) . " characters";
                    }
                }
            }

            //Validate username
            if (strlen($username) > $usernameMaxLength || strlen($username) < $usernameMinLength) {
                $errors[] = "Incorrect username length, must be between " . strval($usernameMinLength) . " and " . strval($usernameMaxLength) . " characters";
            } else {
                if (!ctype_alnum($username)) {
                    $errors[] = "Username must be alphanumeric";
                }
            }

            //Validate password
            if ($password1 != $password2) {
                $errors[] = "Passwords do not match";
            } else {
                if (preg_match('/\s/', $password1)) {
                    $errors[] = "Password can't have spaces";
                } else {
                    if (strlen($password1) > $passwordMaxLength || strlen($password1) < $passwordMinLength) {
                        $errors[] = "Incorrect password length, must be between " . strval($passwordMinLength) . " and " . strval($passwordMaxLength) . " characters";
                    } else {
                        if (!preg_match('/[A-Za-z]/', $password1) || !preg_match('/[0-9]/', $password1)) {
                            $errors[] = "Password must contain atleast 1 letter and 1 number";
                        }
                    }
                }
            }

            //Check if there is user already registered with the same email or username
            if (count($errors) == 0) {
                //Connect to database
                require dirname(__FILE__) . '/database.php';

                if ($stmt = $mysqli_conection->prepare("SELECT username, email FROM sc_users WHERE email = ? OR username = ? LIMIT 1")) {

                    /* bind parameters for markers */
                    $stmt->bind_param('ss', $email, $username);

                    /* execute query */
                    if ($stmt->execute()) {

                        /* store result */
                        $stmt->store_result();

                        if ($stmt->num_rows > 0) {

                            /* bind result variables */
                            $stmt->bind_result($username_tmp, $email_tmp);

                            /* fetch value */
                            $stmt->fetch();

                            if ($email_tmp == $email) {
                                $errors[] = "User with this email already exist.";
                            } else if ($username_tmp == $username) {
                                $errors[] = "User with this name already exist.";
                            }
                        }

                        /* close statement */
                        $stmt->close();
                    } else {
                        $errors[] = "Something went wrong, please try again.";
                    }
                } else {
                    $errors[] = "Something went wrong, please try again.";
                }
            }

            //Finalize registration
            if (count($errors) == 0) {
                $hashedPassword = password_hash($password1, PASSWORD_BCRYPT);
                if ($stmt = $mysqli_conection->prepare("INSERT INTO sc_users (username, email, password) VALUES(?, ?, ?)")) {

                    /* bind parameters for markers */
                    $stmt->bind_param('sss', $username, $email, $hashedPassword);

                    /* execute query */
                    if ($stmt->execute()) {

                        /* close statement */
                        $stmt->close();
                    } else {
                        $errors[] = "Something went wrong, please try again.";
                    }
                } else {
                    $errors[] = "Something went wrong, please try again.";
                }
            }

            if (count($errors) > 0) {
                echo $errors[0];
            } else {
                echo "Success";
            }
        } else {
            echo "Missing data";
        }
    }

    public function login()
    {
        if (isset($_POST["email"]) && isset($_POST["password"])) {
            $errors = array();

            $email = $_POST["email"];
            $password = $_POST["password"];

            //Connect to database
            require dirname(__FILE__) . '/database.php';

            if ($stmt = $mysqli_conection->prepare("SELECT username, email, password FROM sc_users WHERE email = ? LIMIT 1")) {

                /* bind parameters for markers */
                $stmt->bind_param('s', $email);

                /* execute query */
                if ($stmt->execute()) {

                    /* store result */
                    $stmt->store_result();

                    if ($stmt->num_rows > 0) {
                        /* bind result variables */
                        $stmt->bind_result($username_tmp, $email_tmp, $password_hash);

                        /* fetch value */
                        $stmt->fetch();

                        if (password_verify($password, $password_hash)) {
                            echo "Success" . "|" . $username_tmp . "|" .  $email_tmp;

                            return;
                        } else {
                            $errors[] = "Wrong email or password.";
                        }
                    } else {
                        $errors[] = "Wrong email or password.";
                    }

                    /* close statement */
                    $stmt->close();
                } else {
                    $errors[] = "Something went wrong, please try again.";
                }
            } else {
                $errors[] = "Something went wrong, please try again.";
            }

            if (count($errors) > 0) {
                echo $errors[0];
            }
        } else {
            echo "Missing data";
        }
    }

    public function validate_email_address($email)
    {
        return preg_match('/^([a-z0-9!#$%&\'*+-\/=?^_`{|}~.]+@[a-z0-9.-]+\.[a-z0-9]+)$/i', $email);
    }