PHP variables in a post?

By default, PHP is stripped out of the posts content. You can use this plugin to aleivate this: http://wordpress.org/extend/plugins/exec-php/ This will give you a quick, easy fix to be able to do it the way you are trying to. I would suggest reading http://codex.wordpress.org/Custom_Fields for the more proper way to do this though.

Google Maps with categories

Mapsmarker looks pretty robust. On their feature list page they state that you can organize your markers in layers, so maybe that work for categories. I have not used it. I have used Mappress which allows you to add custom markers and you can create different maps on different pages if you want to categorize … Read more

How to automatically create an index of child sites at the root url for a multisite installation?

For create the links to your child sites use this function elenco_sotto_siti(){ global $wpdb; $blogs = $wpdb->get_results( $wpdb->prepare(“SELECT * FROM $wpdb->blogs WHERE public=”1″ AND archived=’0′ AND mature=”0” AND spam=’0′ AND deleted=’0′ ORDER BY blog_id “),ARRAY_A ); return $blogs; } For question 2 and 3, i use the option framework plugin, and i grab the description … Read more