As per my experience so far, there is no such depth limit existing. The only limit is imposed by the system resources (like script execution time etc.) but not by PHP. Cheers NetEmp On Sun, Mar 6, 2011 at 8:42 PM, shiplu <shiplu.net@xxxxxxxxx> wrote: > Just being curious, I have a question. > How many times PHP interpreter will replace this variables? I mean how deep > it will be? > > If I use variable variables like > > $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$a > how long it will be evaluated? > > -- > Shiplu Mokadd.im > My talks, http://talk.cmyweb.net > Follow me, http://twitter.com/shiplu > Innovation distinguishes between follower and leader >