Xampp and php files

You have to make changes to /etc/apache2/https.conf AFAIK. It worked for me on Termux. Haven’t tried it on Manjaro yet.
Try adding this to httpd.conf

Addtype application/x-httpd-php

This also worked for me.

#Custom by Me

<IfModule php7_module>

AddType application/x-httpd-php .php

AddType application/x-httpd-php-source .phps


    <IfModule dir_module>
        DirectoryIndex index.html index.php
    </IfModule>

</IfModule>