PHP build_url (opposite of parse_url)

gistfile1.txt

    /**
     * Generate URL from its components (i.e., opposite of built-in php function, parse_url())
     *
     * @param array $components
     *
     * @return string
     */
    function build_url($components)
    {
        $url = $components['scheme'] . '://';

        if ( ! empty($components['username']) && ! empty($components['password'])) {
            $url .= $components['username'] . ':' . $components['password'] . '@';
        }

        $url .= $components['host'];

        if ( ! empty($components['port']) &&
            (($components['scheme'] === 'http' && $components['port'] !== 80) ||
            ($components['scheme'] === 'https' && $components['port'] !== 443))
        ) {
            $url .= ':' . $components['port'];
        }

        if ( ! empty($components['path'])) {
            $url .= $components['path'];
        }

        if ( ! empty($components['fragment'])) {
            $url .= '#' . $components['fragment'];
        }

        if ( ! empty($components['query'])) {
            $url .= '?' . http_build_query($components['query']);
        }

        return $url;
    }

@robocoder so correct it then! You can edit your gists :))