DTracing PHP
Dtrace is an extremely flexible and powerful tool to trace and debug applications. I recently dtraced PHP a little bit, so here is a tutorial how to start dtracing PHP.
Prequisites
You need a dtrace capable operating system like Solaris 10, OpenSolaris, Mac OS X 10.5 or FreeBSD 7. I use dtrace on OpenSolaris 2008.11. You …