Create a static copy of a phpwcms site

.htaccess

# Redirect Query String to Html file.
<IfModule mod_rewrite.c>
    RewriteCond %{QUERY_STRING} ([a-z0-9]+) [NC]
    RewriteRule (.*) /%1.html? [R=301,L]
</IfModule>

zsh on Mac

# Get all links and stuff. `--adjust-extension` will append a .html extension to the phpwcms query params.
wget -U Mozilla -m -k -D my-domain.com -np "my-domain.com" -e robots=off --adjust-extension

# Replace links in all files. -i writes instantly, the empty '' omits a backup file.
find . -type f -maxdepth 1 -name '*.*' -exec sed -i '' 's/index.php%3F//g' {} +

# Finally rename file names accordingly, cutting off the initial `index.php?` and leaving only the unique query params.
zmv 'index.php?(*)' '${1}'