<?php
declare(strict_types=1);

use Uri\InvalidUriException;
use Uri\Rfc3986\Uri;

foreach (['https://example.test/docs', '/docs', 'https://['] as $input) {
    try {
        $uri = new Uri($input);
    } catch (InvalidUriException) {
        echo "rejected: invalid syntax", PHP_EOL;
        continue;
    }
    if ($uri->getScheme() === null || $uri->getHost() === null) {
        echo "rejected: absolute URI required", PHP_EOL;
        continue;
    }
    echo $uri->getScheme(), ' ', $uri->getHost(), PHP_EOL;
}