APD Functions

Contact information

If you have comments, bugfixes, enhancements or want to help developing this beast, you can send an mail to » apd@mail.communityconnect.com. Any help is very welcome.

apd_breakpoint — Stops the interpreter and waits on a CR from the socket
apd_callstack — Returns the current call stack as an array
apd_clunk — Throw a warning and a callstack
apd_continue — Restarts the interpreter
apd_croak — Throw an error, a callstack and then exit
apd_dump_function_table — Outputs the current function table
apd_dump_persistent_resources — Return all persistent resources as an array
apd_dump_regular_resources — Return all current regular resources as an array
apd_echo — Echo to the debugging socket
apd_get_active_symbols — Get an array of the current variables names in the local scope
apd_set_pprof_trace — Starts the session debugging
apd_set_session_trace_socket — Starts the remote session debugging
apd_set_session_trace — Starts the session debugging
apd_set_session — Changes or sets the current debugging level
override_function — Overrides built-in functions
rename_function — Renames orig_name to new_name in the global function table

User Contributed Notes

bugbuster at darrencampbell dot com dot au

10 years ago


Locate the root-cause of defects, fast.

If you need to locate the source of a defect in complicated web-based PHP applications with lots of conditional includes (osCommerce and Zen-Cart are reasonably complex), use APD to create a profile dump.

Then filter the dump for lines containing "!" to produce a list of included (required) files in the order they were included.

On my Win98 dev box I use: find "!" dumpfile > trace_program.txt

I use the trace_program.txt to backtrack to the root-cause of defects appearing in the browser.  Great for maintaining systems you did not build yourself.

ng4rrjanbiah at rediffmail dot com

11 years ago


Some useful links on APD:
1. Profiling PHP Applications ( http://www.schlossnagle.org/~george/talks/Profiling-phpworks-2004.pdf ), [1.40 MB], George Schlossnagle, 2004-09-23
2. PHP Performance Profiling ( http://www.linuxjournal.com/article/7213 ), [13.16 KB], Jonathan Oxer, 2003-10-21
3. APD Wiki ( http://www.wiki.cc/php/Apd )

HTH,
R. Rajesh Jeba Anbiah

northon_patrick3 at yahoo dot ca

7 years ago


There seem to be a mistake with the name of the apd_set_socket_session_trace function. In the latest build (version 1.0.1) of apd for PHP, the function is called apd_set_session_trace_socket.

The APD pecl page also have some problems. Some of the links direct you to some adt pages.

judas dot iscariote at gmail dot com

9 years ago


if you are looking for better/different alternatives to APD, check the xdebug website http://www.xdebug.org or download it from PECL http://pecl.php.net/xdebug

yoghurtmetperzik at gmail dot com

11 years ago


If pprofp reports 'No such file or directory', it's probably because it contains an incorrect path to your php client. Open pprofp in your fav editor, edit the first line, and try again.

APD Functions

Contact information

Table of Contents

User Contributed Notes