Manual:Hooks/PageContentSave

Details

 * : the WikiPage (object) being saved
 * : the User (object) saving the article
 * : the new article content, as a Content object
 * : the article summary (comment)
 * : minor flag
 * : watch flag (not used, aka always null)
 * : section number (not used, aka always null)
 * : see WikiPage::doEditContent documentation for flags' definition
 * : Status (object)
 * Return value: Return  to abort saving the page.