We have probes to capture the function entry / exit points. These probes have 
been ported within current PHP trunk as well. You can try out the latest PHP 
build from htp://snaps.php.net (make sure to get php-trunk source tar ball).  

Here are some useful links
http://blogs.sun.com/angelo/entry/diving_into_drupal_depths_with
http://blogs.sun.com/natarajan/entry/new_dtrace_probes_within_php
http://wiki.php.net/rfc/dtrace
http://blog.experimentalworks.net/2010/04/php-5-3-99-dev-and-dtrace-part-i/

- Sriram

On Aug 25, 2010, at 6:01 AM, Stephan Ferraro wrote:

> I checked the dtrace example files for PHP.
> However none of this tracing outputs, output full internal PHP function names 
> or classes.
> I suppose there is a need to include dtrace probes in each PHP function, 
> class and method.
> 
> Currently it traces only own functions created in custom PHP files.
> Does somebody knows if there is a patched PHP version which includes more 
> probes?
> -- 
> This message posted from opensolaris.org
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