I'm periodically updating a PHP binding to libsass on my companies github account here: <a href="https://github.com/sensational/sassphp" rel="nofollow">https://github.com/sensational/sassphp</a><p>It was my intention of keeping up with releases, but it looks like updating it periodically to git HEAD of libsass might be what's needed. I'll look into getting the submodule updated to a later release today.<p>That said: last summer when I started maintaining this fork of an earlier binding, I noticed that libsass (even tag RELEASE-1.0) was in a bit an early state of development: HEAD was flat-out segfaulting and RELEASE-1.0 was producing miscompilations.<p>I've reported a few bugs but in the end, we've settled back with ruby sass for the time being. The speed up is nice, but only if the library is actually producing valid output without crashing.<p>Maybe by now this is better and I should give it another go :-)<p>Also, I'm certainly no C++ programmer and thus this might be common, but their template based parser with a lot of implementation code in a header file kind of scares me (<a href="https://github.com/hcatlin/libsass/blob/master/prelexer.hpp" rel="nofollow">https://github.com/hcatlin/libsass/blob/master/prelexer.hpp</a>)