0000797: XDebug terminates (or Eclipse loses it?) when viewing variables

ID	Project	Category	View Status	Date Submitted	Last Update

0000797	Xdebug	Uncategorized	public	2012-03-16 21:47	2012-05-01 16:26

Reporter	ryanp	Assigned To	derick
Priority	normal	Severity	major	Reproducibility	always
Status	closed	Resolution	fixed
Platform	PHP 5.4.0, Apache 2.2.20	OS	Ubuntu Linux	OS Version	11.10
Product Version	2.2dev
Target Version	2.2.0	Fixed in Version	2.2.0

Summary	0000797: XDebug terminates (or Eclipse loses it?) when viewing variables
Description	I recently updated to PHP 5.4.0 and built XDebug from git (03940ba, 3/13). I am now unable to debug my PHP scripts... but ONLY if I have the 'Variables' tab active in Eclipse Debug. If I select a different tab ('Breakpoints', for example), I am able to debug. If 'Variables' is active when I start debugging, the debug terminates immediately after it starts. If it isn't active, then I can debug, but as soon as I select 'Variables' the debug stops. With the remote log, I was able to determine that the problem occurs when 'context_get' is issued the second time. It is first issued as 'context_get -i 131 -c 1' -- this one works fine and seems to return all the superglobals. Then 'context_get -i 132 -d 0' is issued, but there is no data returned (presumably because XDebug has crashed/disconnected?).
Steps To Reproduce	Set a breakpoint Run script, XDebug stops at the breakpoint Select 'Variables' tab in Eclipse (or similar in other IDEs?) 'Unexpected termination of script, debugging ended.'
Tags	No tags attached.
Attached Files	test.php (153 bytes) test2.php (124 bytes) xdebug.log (11,969 bytes) Log opened at 2012-03-19 14:45:48 I: Connecting to configured address/port: localhost:9000. I: Connected to client. :-) -> <init xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" fileuri="file:///home/ryan/git/treat/htdocs/test.php" language="PHP" protocol_version="1.0" appid="3563" idekey="ECLIPSE_DBGP"><engine version="2.2.0rc1"><![CDATA[Xdebug]]></engine><author><![CDATA[Derick Rethans]]></author><url><![CDATA[http://xdebug.org]]></url><copyright><![CDATA[Copyright (c) 2002-2012 by Derick Rethans]]></copyright></init> <- feature_set -i 212 -n show_hidden -v 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="212" feature="show_hidden" success="1"></response> <- feature_set -i 213 -n max_depth -v 3 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="213" feature="max_depth" success="1"></response> <- feature_set -i 214 -n max_children -v 31 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="214" feature="max_children" success="1"></response> <- feature_get -i 215 -n encoding -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_get" transaction_id="215" feature_name="encoding" supported="1"><![CDATA[iso-8859-1]]></response> <- feature_get -i 216 -n supports_async -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_get" transaction_id="216" feature_name="supports_async" supported="1"><![CDATA[0]]></response> <- stdout -i 217 -c 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stdout" transaction_id="217" success="1"></response> <- stderr -i 218 -c 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stderr" transaction_id="218" success="0"></response> <- breakpoint_set -i 219 -t line -f file:///home/ryan/git/treat/lib/Treat/Controller/Abstract.php -n 260 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="breakpoint_set" transaction_id="219" id="35630001"></response> <- breakpoint_set -i 220 -t line -f file:///home/ryan/git/treat/htdocs/test2.php -n 7 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="breakpoint_set" transaction_id="220" id="35630002"></response> <- run -i 221 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="run" transaction_id="221" status="break" reason="ok"><xdebug:message filename="file:///home/ryan/git/treat/htdocs/test2.php" lineno="7"></xdebug:message></response> <- stack_get -i 222 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stack_get" transaction_id="222"><stack where="Base::basetest" level="0" type="file" filename="file:///home/ryan/git/treat/htdocs/test2.php" lineno="7"></stack><stack where="Test->test" level="1" type="file" filename="file:///home/ryan/git/treat/htdocs/test.php" lineno="7"></stack><stack where="{main}" level="2" type="file" filename="file:///home/ryan/git/treat/htdocs/test.php" lineno="11"></stack></response> <- stack_get -i 223 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stack_get" transaction_id="223"><stack where="Base::basetest" level="0" type="file" filename="file:///home/ryan/git/treat/htdocs/test2.php" lineno="7"></stack><stack where="Test->test" level="1" type="file" filename="file:///home/ryan/git/treat/htdocs/test.php" lineno="7"></stack><stack where="{main}" level="2" type="file" filename="file:///home/ryan/git/treat/htdocs/test.php" lineno="11"></stack></response> <- context_get -i 224 -c 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="context_get" transaction_id="224" context="1"><property name="$_COOKIE" fullname="$_COOKIE" address="140081368467208" type="array" children="1" numchildren="5" page="0" pagesize="31"><property name="__utma" fullname="$_COOKIE['__utma']" address="140081368468192" type="string" size="56" encoding="base64"><![CDATA[MTE0MjA3ODUuMTczNjI0NjY3OS4xMzAxNjAzMjEwLjEzMzE5MzQ3NTguMTMzMjE2NzUyNi40NDg=]]></property><property name="__utmz" fullname="$_COOKIE['__utmz']" address="140081368468824" type="string" size="69" encoding="base64"><![CDATA[MTE0MjA3ODUuMTMwMTYwMzIxMC4xLjEudXRtY3NyPShkaXJlY3QpfHV0bWNjbj0oZGlyZWN0KXx1dG1jbWQ9KG5vbmUp]]></property><property name="PHPSESSID" fullname="$_COOKIE['PHPSESSID']" address="140081368469264" type="string" size="26" encoding="base64"><![CDATA[ZTQxcnZsMmI0bGJmZ25kZmUxMThvMXA4bzQ=]]></property><property name="__utmb" fullname="$_COOKIE['__utmb']" address="140081368469656" type="string" size="24" encoding="base64"><![CDATA[MTE0MjA3ODUuNC4xMC4xMzMyMTY3NTI2]]></property><property name="__utmc" fullname="$_COOKIE['__utmc']" address="140081368469992" type="string" size="8" encoding="base64"><![CDATA[MTE0MjA3ODU=]]></property></property><property name="$_ENV" fullname="$_ENV" address="140081368470360" type="array" children="0" numchildren="0" page="0" pagesize="31"></property><property name="$_FILES" fullname="$_FILES" address="140081368470136" type="array" children="0" numchildren="0" page="0" pagesize="31"></property><property name="$_GET" fullname="$_GET" address="140081368466232" type="array" children="0" numchildren="0" page="0" pagesize="31"></property><property name="$_POST" fullname="$_POST" address="140081368466984" type="array" children="0" numchildren="0" page="0" pagesize="31"></property><property name="$_REQUEST" fullname="$_REQUEST" address="140081368470584" type="array" children="0" numchildren="0" page="0" pagesize="31"></property><property name="$_SERVER" fullname="$_SERVER" address="140081368470808" type="array" children="1" numchildren="29" page="0" pagesize="31"><property name="HTTP_HOST" fullname="$_SERVER['HTTP_HOST']" address="140081368471296" type="string" size="5" encoding="base64"><![CDATA[dHJlYXQ=]]></property><property name="HTTP_USER_AGENT" fullname="$_SERVER['HTTP_USER_AGENT']" address="140081368471872" type="string" size="76" encoding="base64"><![CDATA[TW96aWxsYS81LjAgKFgxMTsgVWJ1bnR1OyBMaW51eCB4ODZfNjQ7IHJ2OjExLjApIEdlY2tvLzIwMTAwMTAxIEZpcmVmb3gvMTEuMA==]]></property><property name="HTTP_ACCEPT" fullname="$_SERVER['HTTP_ACCEPT']" address="140081368472336" type="string" size="63" encoding="base64"><![CDATA[dGV4dC9odG1sLGFwcGxpY2F0aW9uL3hodG1sK3htbCxhcHBsaWNhdGlvbi94bWw7cT0wLjksKi8qO3E9MC44]]></property><property name="HTTP_ACCEPT_LANGUAGE" fullname="$_SERVER['HTTP_ACCEPT_LANGUAGE']" address="140081368472712" type="string" size="14" encoding="base64"><![CDATA[ZW4tdXMsZW47cT0wLjU=]]></property><property name="HTTP_ACCEPT_ENCODING" fullname="$_SERVER['HTTP_ACCEPT_ENCODING']" address="140081368473096" type="string" size="13" encoding="base64"><![CDATA[Z3ppcCwgZGVmbGF0ZQ==]]></property><property name="HTTP_DNT" fullname="$_SERVER['HTTP_DNT']" address="140081368473472" type="string" size="1" encoding="base64"><![CDATA[MQ==]]></property><property name="HTTP_CONNECTION" fullname="$_SERVER['HTTP_CONNECTION']" address="140081368473840" type="string" size="10" encoding="base64"><![CDATA[a2VlcC1hbGl2ZQ==]]></property><property name="HTTP_COOKIE" fullname="$_SERVER['HTTP_COOKIE']" address="140081368474392" type="string" size="229" encoding="base64"><![CDATA[X191dG1hPTExNDIwNzg1LjE3MzYyNDY2NzkuMTMwMTYwMzIxMC4xMzMxOTM0NzU4LjEzMzIxNjc1MjYuNDQ4OyBfX3V0bXo9MTE0MjA3ODUuMTMwMTYwMzIxMC4xLjEudXRtY3NyPShkaXJlY3QpfHV0bWNjbj0oZGlyZWN0KXx1dG1jbWQ9KG5vbmUpOyBQSFBTRVNTSUQ9ZTQxcnZsMmI0bGJmZ25kZmUxMThvMXA4bzQ7IF9fdXRtYj0xMTQyMDc4NS40LjEwLjEzMzIxNjc1MjY7IF9fdXRtYz0xMTQyMDc4NQ==]]></property><property name="HTTP_CACHE_CONTROL" fullname="$_SERVER['HTTP_CACHE_CONTROL']" address="140081368474912" type="string" size="9" encoding="base64"><![CDATA[bWF4LWFnZT0w]]></property><property name="PATH" fullname="$_SERVER['PATH']" address="140081368475456" type="string" size="28" encoding="base64"><![CDATA[L3Vzci9sb2NhbC9iaW46L3Vzci9iaW46L2Jpbg==]]></property><property name="SERVER_SIGNATURE" fullname="$_SERVER['SERVER_SIGNATURE']" address="140081368475936" type="string" size="66" encoding="base64"><![CDATA[PGFkZHJlc3M+QXBhY2hlLzIuMi4yMCAoVWJ1bnR1KSBTZXJ2ZXIgYXQgdHJlYXQgUG9ydCA4MDwvYWRkcmVzcz4K]]></property><property name="SERVER_SOFTWARE" fullname="$_SERVER['SERVER_SOFTWARE']" address="140081368476328" type="string" size="22" encoding="base64"><![CDATA[QXBhY2hlLzIuMi4yMCAoVWJ1bnR1KQ==]]></property><property name="SERVER_NAME" fullname="$_SERVER['SERVER_NAME']" address="140081368476696" type="string" size="5" encoding="base64"><![CDATA[dHJlYXQ=]]></property><property name="SERVER_ADDR" fullname="$_SERVER['SERVER_ADDR']" address="140081368477064" type="string" size="9" encoding="base64"><![CDATA[MTI3LjAuMC4x]]></property><property name="SERVER_PORT" fullname="$_SERVER['SERVER_PORT']" address="140081368477432" type="string" size="2" encoding="base64"><![CDATA[ODA=]]></property><property name="REMOTE_ADDR" fullname="$_SERVER['REMOTE_ADDR']" address="140081368477800" type="string" size="9" encoding="base64"><![CDATA[MTI3LjAuMC4x]]></property><property name="DOCUMENT_ROOT" fullname="$_SERVER['DOCUMENT_ROOT']" address="140081368478504" type="string" size="40" encoding="base64"><![CDATA[L3Zhci93d3ctcHJvamVjdHMvV29ya3NwYWNlL3RyZWF0L2h0ZG9jcw==]]></property><property name="SERVER_ADMIN" fullname="$_SERVER['SERVER_ADMIN']" address="140081368479160" type="string" size="19" encoding="base64"><![CDATA[d2VibWFzdGVyQGxvY2FsaG9zdA==]]></property><property name="SCRIPT_FILENAME" fullname="$_SERVER['SCRIPT_FILENAME']" address="140081368479608" type="string" size="49" encoding="base64"><![CDATA[L3Zhci93d3ctcHJvamVjdHMvV29ya3NwYWNlL3RyZWF0L2h0ZG9jcy90ZXN0LnBocA==]]></property><property name="REMOTE_PORT" fullname="$_SERVER['REMOTE_PORT']" address="140081368479976" type="string" size="5" encoding="base64"><![CDATA[NTk2OTI=]]></property><property name="GATEWAY_INTERFACE" fullname="$_SERVER['GATEWAY_INTERFACE']" address="140081368480352" type="string" size="7" encoding="base64"><![CDATA[Q0dJLzEuMQ==]]></property><property name="SERVER_PROTOCOL" fullname="$_SERVER['SERVER_PROTOCOL']" address="140081368480728" type="string" size="8" encoding="base64"><![CDATA[SFRUUC8xLjE=]]></property><property name="REQUEST_METHOD" fullname="$_SERVER['REQUEST_METHOD']" address="140081368481096" type="string" size="3" encoding="base64"><![CDATA[R0VU]]></property><property name="QUERY_STRING" fullname="$_SERVER['QUERY_STRING']" address="140081368481464" type="string" size="0" encoding="base64"><![CDATA[]]></property><property name="REQUEST_URI" fullname="$_SERVER['REQUEST_URI']" address="140081368481832" type="string" size="9" encoding="base64"><![CDATA[L3Rlc3QucGhw]]></property><property name="SCRIPT_NAME" fullname="$_SERVER['SCRIPT_NAME']" address="140081368482200" type="string" size="9" encoding="base64"><![CDATA[L3Rlc3QucGhw]]></property><property name="PHP_SELF" fullname="$_SERVER['PHP_SELF']" address="140081368482568" type="string" size="9" encoding="base64"><![CDATA[L3Rlc3QucGhw]]></property><property name="REQUEST_TIME_FLOAT" fullname="$_SERVER['REQUEST_TIME_FLOAT']" address="140081368482720" type="float"><![CDATA[1332168348.182]]></property><property name="REQUEST_TIME" fullname="$_SERVER['REQUEST_TIME']" address="140081368482880" type="int"><![CDATA[1332168348]]></property></property></response> <- context_get -i 225 -d 0 xdebug.log (11,969 bytes) rix.xdebug.log (44,562 bytes) rix2.xdebug.log (29,529 bytes) rix2.test.php (236 bytes)

Operating System	Ubuntu Linux 11.10
PHP Version	5.4.0

ryanp 2012-03-16 21:58 reporter ~0001986	FYI - I can still view the value of some variables by hovering them. Looking at the log, it seems that uses 'property_get -i 205 -n $url -d 0 -p 0', which works fine.

derick 2012-03-16 22:00 administrator ~0001987	Can you please provide the script and the remote debug log? The smaller and self-contained the script, the better.

ryanp 2012-03-19 14:52 reporter ~0001998	I did some testing and made a script for you. The problem seems to present itself when a class is calling a static method from a base class in another file. In the same file, there is no problem, and if the base class method is non-static, there's no problem. Additionally, the base class must have some property - static or non-static. With no properties on the base class, again, no problem. I placed a breakpoint in test2.php:7 (echo 'blah blah blah';) for testing.

derick 2012-03-24 23:54 administrator ~0002012	I can reproduce this with your scripts and remote_log.

derick 2012-04-08 12:53 administrator ~0002033	I can no longer reproduce this. Not sure why though, but could you try the latest version from github?

ryanp 2012-04-10 15:18 reporter ~0002038	I just did a git pull (8ea0093, 4/08) and a clean make, then replaced my xdebug module... still having the same issue. Not sure if it would make a difference, but the PPA with PHP 5.4 updated about a week ago. Don't know what changed in it. I also installed APC yesterday, so I just disabled and tested again - no change.

rixbeck 2012-04-16 14:58 reporter ~0002043	Same problem here. I'm accidentally updated my debian vbox to testing version with php 5.4 xdebug 2.2.0-rc1. @ryanp has described the problem correctly. Variables window shows a strange '::' entry too. In log it looks like: <property name="::" fullname="::" type="object" classname="LightWork\MVC\Router\Dispatcher" children="0" numchildren="0"></property> Eclipse log says: org.eclipse.php.internal.debug.core.xdebug.dbgp.model.DBGpTarget : Unexpected XML or parser failure Don't know any relation might have.

derick 2012-04-16 15:06 administrator ~0002044	rixbeck, ryanp: This "::" is correct. It refers to the static properties of the class. Can you paste the whole response though rixbeck? As it shouldn't really add this when there are no children. You might want to bring this up with the eclipse people too though!

rixbeck 2012-04-16 15:13 reporter ~0002045	Uploaded.

derick 2012-04-16 15:29 administrator ~0002046	rixbeck, you're still using RC1, I think I might have fixed it after that. In any case, the last context_get seems to segfault. So what would help me know is a backtrace or a (small) code example.

rixbeck 2012-04-16 15:34 reporter ~0002047	I see. Trying to compile the fresher one. Reporting back with the results. Thanks.

rixbeck 2012-04-16 16:04 reporter ~0002048	Now I have 2.2.0rc2-dev but problem still stays it seems. I'm attaching the test and log. It is important if class B has no property, no error.

derick 2012-04-23 19:17 administrator ~0002086	I can reproduce this, now I just need to fix it :-)

Date Modified	Username	Field	Change
2012-03-16 21:47	ryanp	New Issue
2012-03-16 21:58	ryanp	Note Added: 0001986
2012-03-16 22:00	derick	Note Added: 0001987
2012-03-16 22:00	derick	Assigned To	=> derick
2012-03-16 22:00	derick	Status	new => feedback
2012-03-19 14:47	ryanp	File Added: test.php
2012-03-19 14:47	ryanp	File Added: test2.php
2012-03-19 14:48	ryanp	File Added: xdebug.log
2012-03-19 14:52	ryanp	Note Added: 0001998
2012-03-19 14:52	ryanp	Status	feedback => assigned
2012-03-21 10:23	derick	Target Version	=> 2.2.0
2012-03-24 23:54	derick	Note Added: 0002012
2012-04-08 12:53	derick	Note Added: 0002033
2012-04-08 12:53	derick	Status	assigned => feedback
2012-04-10 15:18	ryanp	Note Added: 0002038
2012-04-10 15:18	ryanp	Status	feedback => assigned
2012-04-16 14:58	rixbeck	Note Added: 0002043
2012-04-16 15:06	derick	Note Added: 0002044
2012-04-16 15:12	rixbeck	File Added: rix.xdebug.log
2012-04-16 15:13	rixbeck	Note Added: 0002045
2012-04-16 15:29	derick	Note Added: 0002046
2012-04-16 15:34	rixbeck	Note Added: 0002047
2012-04-16 16:04	rixbeck	Note Added: 0002048
2012-04-16 16:05	rixbeck	File Added: rix2.xdebug.log
2012-04-16 16:06	rixbeck	File Added: rix2.test.php
2012-04-23 19:17	derick	Note Added: 0002086
2012-04-27 23:47	derick	Status	assigned => closed
2012-04-27 23:47	derick	Resolution	open => fixed
2012-04-27 23:47	derick	Fixed in Version	=> 2.2.0
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)
2020-03-12 16:35	derick	Category	Usage problems (Wrong Results) => Variable Display
2020-03-12 16:38	derick	Category	Variable Display => Uncategorized

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