Xdebug 成功连接到 DBGP 客户端，但不会在断点处停

问题描述

我安装了 Xdebug 2.1，并运行 PHP 5.2.13.它可以成功连接到多个 DBGP 客户端(即 xdebug.remote_log 显示来回通信，客户端本身也显示传入连接)，但它不会在断点处停止.我试过 NetBeans、MacGDBp 以及命令行debugclient 与 Xdebug 捆绑在一起.

I have Xdebug 2.1 installed, and running with PHP 5.2.13. It can successfully connect to multiple DBGP clients (i.e. the xdebug.remote_log shows communication back and forth, and the clients themselves also show the incoming connection), but it doesn't stop at breakpoints. I have tried NetBeans, MacGDBp and also the command-line debugclient bundled with Xdebug.

一个典型的交换看起来像:

A typical exchange looks like:

Log opened at 2010-07-20 09:33:17
-> <init xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" fileuri="file:///mnt/hgfs/htdocs/mycompany/index.php" language="PHP" protocol_version="1.0" appid="14371" idekey="macgdbp"><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>

<- status -i macgdbp
-> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="status" transaction_id="macgdbp" status="starting" reason="ok"></response>

<- step_into -i macgdbp
-> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="step_into" transaction_id="macgdbp" status="stopping" reason="ok"></response>

<- status -i macgdbp
-> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="status" transaction_id="macgdbp" status="stopping" reason="ok"></response>

Log closed at 2010-07-20 09:33:18

NetBeans 尝试设置断点，Xdebug 确认这些断点:

NetBeans attempts to set breakpoints, and these are acknowledged by Xdebug:

<- breakpoint_set -i 7 -t line -s enabled -f file:///mnt/hgfs/htdocs/mycompany/index.php -n 9
-> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="http://xdebug.org/dbgp/xdebug" command="breakpoint_set" transaction_id="7" state="enabled" id="139360004"></response>

然而，Xdebug 还是不肯罢休！

However, Xdebug still refuses to stop!

推荐答案

如果您将 Xdebug 作为 extension 加载(即 extension=xdebug.so) 在 PHP 配置中而不是 zend_extension(即 zend_extension=/usr/lib/php5/20060613+lfs/xdebug.so).

This appears to happen if you have have Xdebug loaded as an extension (i.e. extension=xdebug.so) in the PHP config instead of a zend_extension (i.e. zend_extension=/usr/lib/php5/20060613+lfs/xdebug.so).

确保您的 PHP 配置中没有 extension=xdebug.so 行任何地方，即使您是非常确定您正在使用 zend_extension.例如，如果您在 /etc/php5/conf.d/xdebug.ini 中有 zend_extension，这很可能会被 extension 取代在 /etc/php5/apache2/php.ini 中.如果是这种情况，什么都不会抱怨，phpinfo() 会尽职尽责地报告 Xdebug 已加载！(Xdebug 2.1 在作为扩展加载时确实会在 phpinfo() 中发出一个小警告，但以前的版本什么也不做.)

Make sure that you don't have an extension=xdebug.so line anywhere in your PHP config, even if you're pretty sure you're using zend_extension. For example, if you have zend_extension in /etc/php5/conf.d/xdebug.ini, this may well be superseded by an extension in /etc/php5/apache2/php.ini. If this is the case, nothing will complain, and phpinfo() will dutifully report that Xdebug is loaded! (Xdebug 2.1 does issue a small warning in phpinfo() when loaded as an extension, but previous versions do nothing.)

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