PortableInfobox/PortableInfobox.i18n.php

<?php
$messages = [];

$messages[ 'en' ] = [
	'portable-infobox-desc' => 'Create portable infoboxes which can be rendered using clean semantic HTML markup on
	any skin / platform using using easy to understand powerful XML-like markup',
	'unimplemented-infobox-tag' => 'Unimplemented infobox tag: <$1>'
];

$messages[ 'qqq' ] = [
	'portable-infobox-desc' => 'Portable Infobox extension description',
	'unimplemented-infobox-tag' => 'Error message for using unimplemented infobox tag; $1 is the tag name without pointy braces'
];