I have a simple website, here is one section
http://bostontechnicalwriter.x10host.com/scopejunction.htm
I got tired of rewriting the navigation bar on each page, so I changed all the extensions from htm to php, wrote a separate navbar.php file, and call it on each page with the command <?php include('navbar.php');?>
Here is the same section on a different host
https://exper17.000webhostapp.com/gmvolt.php
It works! I only have to write the navbar once, but why have all the commas and dashes turned into question marks? I tried the same thing elsewhere and it does the same thing, so it’s not the host - I must be doing something wrong. How do I correct this?