PHP code example of jonathanr / php-optional-result

1. Go to this page and download the library: Download jonathanr/php-optional-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/ */

jonathanr / php-optional-result example snippets



/**
* @return string
*/
function askDomain(string $name): ?String
{
  try {
      $json = Http::get('myResolverApi?name='.$name)->json();
      if (isset($json['domain']) && ($json['domain'] !== null || $json['domain'] !== '')) {
      return $json['domain'];
      }
      return null;

  } catch (HttpException) {
    throw new Exception('API No respond');
  }
}

function isDomainExist(string $name): string
{
    try {
        $result = askDomain($name);

        if (!empty($result)) {
            return 'domain is' . $result; 
        }
        
    } catch (Exception $e) {
        return '';
    }
}


echo isDomainExist('goooooooooooogle');



/**
* @return Ok<Some<string>|None>|Err<None>
*/
function askDomain(string $name): Ok|Err
{
    try {
        $json = Http::get('myResolverApi?name='.$name)->json();
        if (isset($json['domain'])) {
            return Result::ok(Option::some($json['domain']));
        }
    
       return Result::ok(Option::none());
    
    } catch (HttpException) {
    return Result::Err(Option::none());
    }
}

function isDomainExist(string $name): string
{
    $result = askDomain($name);

    if ($result->isErr()) {
        return 'Not sure. API not respond';
    }

    if ($result->isOk() && $result->get()->isSome()) {
        return 'domain is'.$result->get()->isSome()->get();
    }

    return 'domain does not exist';
}


echo isDomainExist('goooooooooooogle');