Docs ‐ Decision

Introduction to Decisions

USSD decision help us to know how to transition from one state to the other based on user input.

By default Laravel USSD comes in built with the following decisions.

use Speso\Ussd\Decisions;

new Decisions\Between(12, 24);
new Decisions\Equal('1');
new Decisions\Fallback();
new Decisions\GreaterThan(2);
new Decisions\GreaterThanOrEqualTo(1);
new Decisions\In('1', '3');
new Decisions\IsNumeric();
new Decisions\Length(10);
new Decisions\LessThan(1);
new Decisions\LessThanOrEqualTo(10);
new Decisions\NotBetween(5, 10)
new Decisions\NotEqual(1)
new Decisions\NotIn('name', 'age');
new Decisions\Regex('/+d/');

Inbuilt decision have a loose comparison. You can add custom decision that meet your application needs.

Creating decisions

php artisan ussd:decision StrictEqual

Implement your decision logic

<?php

namespace App\Ussd\Decisions;

use Speso\Ussd\Contracts\Decision;

class StrictEqual implements Decision
{
    public function __construct(private string $expected)
    {

    }

    public function decide(string $actual): bool
    {
        return $this->expected === $actual;
    }
}

Use your decision

new App\Ussd\Decisions\StrictEqual('2');