View Issue Details

IDProjectCategoryView StatusLast Update
0000958XdebugUsage problems (Wrong Results)public2017-03-19 22:15
ReporterericolAssigned Toderick 
Status resolvedResolutionwon't fix 
Product Version2.2.1 
Target VersionFixed in Version 
Summary0000958: XDebug doesn't breakpoint at code called by preg_replace (Might affect other functions)
DescriptionIf you make preg_replace call a function when replacing some text, any breakpoint set in the function isn't honoured.
Steps To ReproduceIn this code, place a breakpoint in line 5 ("echo $txt") and another in line 8 ("return 'h';"). Execution stops at line 5, but not at line 8.


$txt=preg_replace(array('/[a-z]/e'), array("replace(\"$1\")"), $txt);
echo $txt;

function replace($txt) {
    return 'h';
TagsDoesn't Break
Operating SystemWindows 7
PHP Version5.3.1



2013-07-09 07:59

administrator   ~0002533

Could you create an accompanying remote debugging log with such a debugging session with that script? You can make one by turning on xdebug.remote_log=c:\temp\xdebug.log (or similar name of course).


2013-08-06 17:50

reporter (4,589 bytes)


2013-08-06 17:51

reporter   ~0002553

apologies on the late response. I saw the email and thought about doing that later, and then completely forgot about it.
Attached is the log, hope that helps.


2013-10-09 18:36

administrator   ~0002573

I've had a look at this and I can see what is wrong. Requires hackyness for preg replace and "regexp code" in filename checks.


2017-03-19 22:15

administrator   ~0004236

I had a look at this again, and the /e modifier is no longer available in PHP 7.x for preg_replace - instead, you need to use preg_match_replace.

As this is sort of a new feature, which would only apply for PHP 5, I have decided not to add this new "hacky" functionality that relies on string matching a filename.

Issue History

Date Modified Username Field Change
2013-07-04 14:42 ericol New Issue
2013-07-04 14:42 ericol Tag Attached: Doesn't Break
2013-07-09 07:59 derick Note Added: 0002533
2013-07-09 07:59 derick Assigned To => derick
2013-07-09 07:59 derick Status new => feedback
2013-08-06 17:50 ericol File Added:
2013-08-06 17:51 ericol Note Added: 0002553
2013-08-06 17:51 ericol Status feedback => assigned
2013-10-09 18:36 derick Note Added: 0002573
2016-07-31 12:36 derick Category Usage problems => Usage problems (Crashes)
2016-07-31 12:38 derick Category Usage problems (Crashes) => Usage problems (Wrong Results)
2016-11-28 20:59 derick Status assigned => confirmed
2017-03-19 22:15 derick Note Added: 0004236
2017-03-19 22:15 derick Status confirmed => resolved
2017-03-19 22:15 derick Resolution open => won't fix