how to programmatically clear the cache of your site?

[midisa]

I have a site elvish.biz. it adds entries by anonymous users. After adding a few entries, the entire structure of the site is completely lost (if visit to http://elvish.biz/category/programs page).
After clearing the cache, the appearance of the site once again restored.
I want to add records to a form, put the function of cleaning the cache of the site.
how to clear the entire cache site programmatically?
please help me.
thank you.

forgot to say. I have enabled https connection. when the cache fails, then some of the links obtained via http, and some links via https.
After clearing the cache, all references to becoming http.

[majick777]

can you put this somwhere in your code:
if (function_exists('ws_plugin__qcache_purge_cache_dir')) {ws_plugin__qcache_purge_cache_dir ();}
worth a try...!