I did some more research and might have find a few good PHP equivalents:<p>- guzzle for HTTP request handling - <a href="http:&#x2F;&#x2F;docs.guzzlephp.org&#x2F;en&#x2F;latest&#x2F;" rel="nofollow">http:&#x2F;&#x2F;docs.guzzlephp.org&#x2F;en&#x2F;latest&#x2F;</a><p>- Virtphp for virtual environments - <a href="https:&#x2F;&#x2F;github.com&#x2F;virtphp&#x2F;virtphp" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;virtphp&#x2F;virtphp</a><p>- Composer for dependency management - <a href="https:&#x2F;&#x2F;getcomposer.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;getcomposer.org&#x2F;</a><p>- PHP-cli-tools for CLI building, see the example: <a href="https:&#x2F;&#x2F;github.com&#x2F;wp-cli&#x2F;php-cli-tools&#x2F;blob&#x2F;master&#x2F;examples&#x2F;arguments.php" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;wp-cli&#x2F;php-cli-tools&#x2F;blob&#x2F;master&#x2F;examples...</a>