Special HTML for ASCII

Hey, is there any built-in functions or something similar in php that will allow me to turn custom HTML code like: <(;),> (;), Á (;) and © (;) etc ... in <,>, Á and ©

Suppose I have a value:

$fileName = "Gibt es eine schö(;)ne Offroadstrecke? (;)";

      

        
        
        
      

    

And I want this:

$fileName = "Gibt es eine schöne Offroadstrecke? ";

      

        
        
        
      

    

Any easy way to do this with php? The first thing I wanted to do was make a function where hardcodes replace all HTML, search every line for codes and replace, but it ends up being a lot of code. :)