So eclipse and xdebug walk into a bar, and then my apache server dies
I am using windows xp x86, wamp, apache2, php 5.3 x86, eclipse php, and xdebug, running on localhost as both a virtualhost and an https virtualhost
eclipse version info
Eclipse for PHP Developers
Version: Helios Release
Build id: 20100617-1415
I had successfully managed, somehow, to setup eclipse and xdebug and all was well.
Then I had to make an svn branch of my project, and reconfigure apache with 2 new virtual hosts, and update my windows host files.
Now when I launch debug mode in eclipse everything dies.
Specifically, If I set no breakpoints the app runs fine, save for the problem I'm trying to debug in the first place.
If I set a breakpoint, the app stops at the breakpoint, and eclipse appears to be holding the ball. But now, when I press continue, or step over, or step into, or sneeze, eclipse tells me execution has resumed, but the application continues to hang, and I have to restart apache.
I suspect that there is some break in the communication between eclipse and xdebug, because it looks to me like eclipse is sending my continue or step over command, but xdebug is not receiving it.
But even if that's the case I don't know what to do about it. Where should I be looking?
Update:
I have successfully been able to debug using notepad++, its xdebug plugin, and, like a caveman, typing &XDEBUG_SESSION_START=session_name into the url. However, despite my love for npp, its debug plugin is quite buggy...
So I noticed an ad on stackoverflow for something called "phpstorm", which professed to be a lightweight yet full featured php ide, with native xdebug support. The demo required a restart to get it to work, and it feels kind of like working on a wobbly draft table, but it managed to debug both my small test app and real app very nicely, which is more than I can say for eclipse at the moment, even though its probably my fault.
I probably should have posted this earlier :/ Here is my phpinfo() xdebug section
xdebug
xdebug support enabled
Version 2.1.0
Supported protocols Revision
DBGp - Common DeBuGger Protocol $Revision: 1.145 $
Directive Local Value Master Value
xdebug.auto_trace Off Off
xdebug.collect_assignments Off Off
xdebug.collect_includes On On
xdebug.collect_params 0 0
xdebug.collect_return Off Off
xdebug.collect_vars Off Off
xdebug.default_enable On On
xdebug.dump.COOKIE no value no value
xdebug.dump.ENV no value no value
xdebug.dump.FILES no value no value
xdebug.dump.GET no value no value
xdebug.dump.POST no value no value
xdebug.dump.REQUEST no value no value
xdebug.dump.SERVER no value no value
xdebug.dump.SESSION no value no value
xdebug.dump_globals On On
xdebug.dump_once On On
xdebug.dump_undefined Off Off
xdebug.extended_info On On
xdebug.file_link_format no value no value
xdebug.idekey no value no value
xdebug.manual_url http://www.php.net http://www.php.net
xdebug.max_nesting_level 100 100
xdebug.overload_var_dump On On
xdebug.profiler_aggregate Off Off
xdebug.profiler_append Off Off
xdebug.profiler_enable Off Off
xdebug.profiler_enable_trigger Off Off
xdebug.profiler_output_dir C:\xampp\tmp C:\xampp\tmp
xdebug.profiler_output_name xdebug_profile.%p xdebug_profile.%p
xdebug.remote_autostart Off Off
xdebug.remote_connect_back Off Off
xdebug.remote_cookie_expire_time 3600 3600
xdebug.remote_enable On On
xdebug.remote_handler dbgp dbgp
xdebug.remote_host localhost localhost
xdebug.remote_log c:\xampp\apache\logs\xdebug.log c:\xampp\apache\logs\xdebug.log
xdebug.remote_mode req req
xdebug.remote_port 9000 9000
xdebug.scream Off Off
xdebug.show_exception_trace Off Off
xdebug.show_local_vars Off Off
xdebug.show_mem_delta Off Off
xdebug.trace_format 0 0
xdebug.trace_options 0 0
xdebug.trace_output_dir C:\xampp\tmp C:\xampp\tmp
xdebug.trace_output_name trace.%c trace.%c
xdebug.var_displ
ay_max_children 128 128
xdebug.var_display_max_data 512 512
xdebug.var_display_max_depth 3 3
Here is an xdebug log file of when I reproduce the problem
Log opened at 2011-01-03 08:56:22 -> <init xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" fileuri="file:///C:/xampp/htdocs/lab/zf-tutorial/public/index.php" language="PHP" protocol_version="1.0" appid="4404" idekey="ECLIPSE_DBGP"><engine version="2.1.0"><![CDATA[Xdebug]]></engine><author><![CDATA[Derick Rethans]]></author><url><![CDATA[http://xdebug.org]]></url><copyright><![CDATA[Copyright (c) 2002-2010 by Derick Rethans]]></copyright></init> <- feature_set -i 33 -n show_hidden -v 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="33" feature="show_hidden" success="1"></response> <- feature_set -i 34 -n max_depth -v 3 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="34" feature="max_depth" success="1"></response> <- feature_set -i 35 -n max_children -v 31 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="35" feature="max_children" success="1"></response> <- feature_get -i 36 -n encoding -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_get" transaction_id="36" feature_name="encoding" supported="1"><![CDATA[iso-8859-1]]></response> <- feature_get -i 37 -n supports_async -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="feature_get" transaction_id="37" feature_name="supports_async" supported="1"><![CDATA[0]]></response> <- stdout -i 38 -c 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stdout" transaction_id="38" success="1"></response> <- stderr -i 39 -c 1 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stderr" transaction_id="39" success="0"></response> <- breakpoint_set -i 40 -t line -f file:///C:%5Cxampp%5Chtdocs%5Clab%5Czf-tutorial%5Cpublic%5Cindex.php -n 21 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="breakpoint_set" transaction_id="40" id="44040001"></response> <- run -i 41 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="run" transaction_id="41" status="break" reason="ok"><xdebug:message filename="file:///C:/xampp/htdocs/lab/zf-tutorial/public/index.php" lineno="21"></xdebug:message></response> <- stack_get -i 42 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stack_get" transaction_id="42"><stack where="{main}" level="0" type="file" filename="file:///C:/xampp/htdocs/lab/zf-tutorial/public/index.php" lineno="21"></stack></response> <- stack_get -i 43 -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="stack_get" transaction_id="43"><stack where="{main}" level="0" type="file" filename="file:///C:/xampp/htdocs/lab/zf-tutorial/public/index.php" lineno="21"></stack></response> <- eval -i 44 -- JHRoaXMtPmZpZWxkc1snYm9vbF9jb21wbGV0ZSdd -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="eval" transaction_id="44"><property address="92404284" type="bool"><![CDATA[-1]]></property></response> <- eval -i 45 -- JHRoaXMtPnN0YWdlLT5nZXQoJ2Jvb2xfY29tcGxldGUnKQ== -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="eval" transaction_id="45"><property address="92404284" type="bool"><![CDATA[-1]]></property></response> <- eval -i 46 -- JHRoaXMtPmZpZWxkc1snYm9vbF9jb21wbGV0ZSdd -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="eval" transaction_id="46"><property address="92404284" type="bool"><![CDATA[-1]]></property></response> <- eval -i 47 -- JHRoaXMtPnN0YWdlLT5nZXQoJ2Jvb2xfY29tcGxldGUnKQ== -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="eval" transaction_id="47"><property address="92404284" type="bool"><![CDATA[-1]]></property></response> === breakpoint reached, execution pauses. In eclipse I click "step over" <- step_over -i 48 === end of log
This article sounds promising.
Both XDebug and Eclipse (in its php dev env) can use the DBGp protocol by the look of things. Based on that article, you might be able to get things working by messing with Apache's .htaccess file[s], or by running a DBGp proxy (whatever that is). Further details in the article.
I suspect both XDebug and Eclipse are connecting to the same PHP debug session, stepping on one anothers toes, causing Hilarity to Ensue.
That or "undefined behavior". Either way.
wooooooooooooo
https://bugs.eclipse.org/bugs/show_bug.cgi?id=312951#c8
Creating a new workspace allows me to debug succesfully.
Right now my best guess as to what caused this is having two projects in the same workspace with different vhosts at the same ip.
So I aint not gonna do that no more.