PHP code example of ghostwriter / result

1. Go to this page and download the library: Download ghostwriter/result library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

ghostwriter / result example snippets


use Ghostwriter\Result\Error;
use Ghostwriter\Result\Success;

// --- Success ---
$success = Success::create('Hello world!');
$success->unwrap(); // 'Hello world!'

// --- Error ---
$error = Error::create(new ExampleException());
$error->unwrap(); // throws: ResultException
$error->unwrapOr('Fallback'); // 'Fallback'
$error->unwrapError(); // returns: instance of ExampleException

// --- Example ---
function divide(int $x, int $y): ResultInterface
{
    if ($y === 0) {
        return Error::create(new DivisionByZeroError);
    }

    return Success::create($x / $y);
}

divide(1, 0); // Error(DivisionByZeroError)
divide(1, 1); // Success(1)