Russian links in Joomla

 $ Lang = & JFactory:: getLanguage (); 
 $ Str = $ lang-> transliterate ($ str); 

 / / Remove any duplicate whitespace, and ensure all characters are alphanumeric 
 $ Str = preg_replace (array ('/  s +/','/[^ A-Za-z0-9  -]/'), array ('-',''), $ str); 

    

 $ Str = preg_replace (array ('/  s +/','/[^ A-Za-zA-Ha yaEe0-9  -] / u'), array ('-',''), $ str) ;