I’ve run some XSLT speed comparisons between the Sablotron and DOMXML PHP libraries using Marc Lysange’s 4.3.2 binary for Mac OS X.
For the same transform, which does not import other style sheets or use XPath’s document () function, DOMXML is on average three times faster than Sablotron. In making those comparisions, I’m including DOMXML’s setup where you create objects for both the the XML and XSLT data.
That’s consistent with the comments I’ve found Googling on the question.
