html - Php syntax issues -

I am new to php ... this is wordpress what is the issue here? This is a simple one for each loop ...

   ID,' sub_nav_name ', true) ;.' '& Gt;' Title ();. & Lt; / a & gt; & lt; / li & gt; '$ $ nav_items [] = html_entity_decode (get_the_title (), ENT_QUOTES,' UTF-8 '); endforeach;? & Gt ;    
 
 
  remove  at the end of the function  
  echo