pfSense

If you save settings for the RSS widget, the widget generates a PHP error.

This happens even with the default settings on a completely fresh installation: Add the RSS widget, click the wrench, click Save.

PHP error is:

PHP Errors:
[09-May-2023 12:31:08 Etc/UTC] PHP Fatal error:  Uncaught TypeError: array_slice(): Argument #3 ($length) must be of type ?int, string given in /usr/local/pfSense/include/vendor/simplepie/simplepie/src/SimplePie.php:3165
Stack trace:
#0 /usr/local/pfSense/include/vendor/simplepie/simplepie/src/SimplePie.php(3165): array_slice(Array, 0, '10')
#1 /usr/local/pfSense/include/vendor/simplepie/simplepie/src/SimplePie.php(2997): SimplePie\SimplePie::merge_items(Array, 0, '10', 0)
#2 /usr/local/www/widgets/widgets/rss.widget.php(109): SimplePie\SimplePie->get_items(0, '10')
#3 /usr/local/www/index.php(430): include('/usr/local/www/...')
#4 {main}
  thrown in /usr/local/pfSense/include/vendor/simplepie/simplepie/src/SimplePie.php on line 3165

config.xml contains:

    <widgets>
        <sequence>system_information:col1:open:0,disks:col1:open:0,netgate_services_and_support:col2:open:0,interfaces:col2:open:0,rss:col2:open:0</sequence>
        <period>10</period>
        <rss-0>
            <descr><![CDATA[RSS]]></descr>
            <rssfeed>https://www.netgate.com/blog/</rssfeed>
            <rssmaxitems>10</rssmaxitems>
            <rsswidgetheight>300</rsswidgetheight>
            <rsswidgettextlength>140</rsswidgettextlength>
        </rss-0>
    </widgets>