Elm0 suggests libxml
Elm0 has suggested a solution to my XHTML validation woes in a thread on WMHub. He suggests using libxml to validate new entries against a DTD, via PHP’s
exec() function. It looks like xmllint is just the command line tool I need—if only I could get it to compile on the University server. I’m getting “out of space” errors which is strange as I have over 10MB left on my account, so I’ll assume for the moment that it’s a problem with the server and try again in a few days.