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IDProjectCategoryView StatusLast Update
0000517XdebugProfilingpublic2020-03-12 17:14
Reporterpatrickallaert Assigned Toderick  
Status closedResolutionfixed 
Product Version2.0.0dev 
Summary0000517: Add a function trace trigger like for the profiler

xdebug.trace_enable_trigger in config.
?XDEBUG_TRACE=1 to activate.

TagsNo tags attached.
Operating System
PHP Version5.3.2


has duplicate 0000671 resolvedderick trig function trace by GET variable 
has duplicate 0000675 resolvedderick invoking trace from command line 



2010-01-09 11:22

reporter   ~0001264

Patch available at:


2010-01-28 22:50

reporter   ~0001289

New patch at:


2010-03-24 06:31

reporter   ~0001410


This is exactly what I need for debugging issues on live servers.


2010-04-26 03:34

reporter   ~0001465

I've adapted this for use with xdebug 2.0.5, which is working well. Line numbers in the patch are different, and there's no distributed php.ini file, but otherwise the patch here works without substantive modification.

This remains awkward on some of the servers I deal with though due to policy that everything needs to be installed from repositories.

What's the chance of this being added to the next version of xdebug?


2010-10-20 02:19

reporter   ~0001585

This is an excellent idea... Can't wait for this to reach stable on Debian! Thanks guys!


2010-10-27 01:37

reporter   ~0001591

I've just managed to backport the patch to Debian stable and it works perfectly. The problem was that I could not find the source version to which the patch applies so I patched it manually (just a few lines needed change so I'm pretty confident I didn't introduce any bugs) and compiled it against the current stable. So beware that this is a heuristic (hope for the best) patch.

Deb package:
Patched source:
/etc/php5/conf.d/xdebug.ini example: - a tiny BASH script to toggle debuger for production servers:

I also have a line in crontab to turn the debugger off every evening in case I forgot but this is a double edged sword since it can break a site if you accidentally leave an xdebug_break() in the source:

Turn off xdebug if it is active

25 4 * root /root/bin/ off > /dev/null

The advantage of installing the Debian package is that the package manager will warn you that the dependencies of the manually built Xdebug will be broken when you try to upgrade any of the packages on which it depends. This way your system will stay in dependence perfect state if you maintain it through apt, even though we patched it manually. Once any of the depending packages gets a new version in stable we will have to recompile Xdebug.


2010-10-28 06:41

reporter   ~0001592

I've just noticed that this backport enables the xdebug.remote_connect_back (available since 2.1) which is VERY handy if you're debugging from more than one machine.


2011-03-30 02:52

reporter   ~0001698

The company I work for uses a patched version of XDebug with this feature added. Without this feature we could not consider using XDebug to identify issues on live servers.

Can I therefore ask for the 'severity' of this feature to be reviewed?


2011-03-30 20:37

administrator   ~0001699

This is now implemented in SVN for 2.2.0-dev. Thanks for the patch Patrick!

Issue History

Date Modified Username Field Change
2010-01-08 11:41 patrickallaert New Issue
2010-01-08 11:41 patrickallaert PHP Version => 5.3.2
2010-01-08 11:41 patrickallaert Xdebug Version => 2.1.0-dev
2010-01-09 11:22 patrickallaert Note Added: 0001264
2010-01-28 22:50 patrickallaert Note Added: 0001289
2010-03-24 06:31 ngaur Note Added: 0001410
2010-04-26 03:34 ngaur Note Added: 0001465
2010-10-20 02:19 vlatko.surlan Note Added: 0001585
2010-10-27 01:37 vlatko.surlan Note Added: 0001591
2010-10-28 06:41 vlatko.surlan Note Added: 0001592
2011-03-30 02:52 ngaur Note Added: 0001698
2011-03-30 20:37 derick Note Added: 0001699
2011-03-30 20:37 derick Status new => closed
2011-03-30 20:37 derick Assigned To => derick
2011-03-30 20:37 derick Resolution open => fixed
2011-03-30 21:47 derick Relationship added has duplicate 0000671
2016-12-04 19:13 derick Relationship added has duplicate 0000675
2020-03-12 16:55 derick Severity minor => feature
2020-03-12 17:14 derick Category Feature/Change request => Profiling