作者:zhanhailiang 日期:2013-03-11
1.简述
引用官方描述：
The Xdebug extension helps you debugging your script by providing a lot of valuable debug information.
2.安装配置教程
# 下载xdebug安装包linux-06bq:/data/software/ # wget http://xdebug.org/files/xdebug-2.2.1.tgzlinux-06bq:/data/software/ # tar zxvf xdebug-2.2.1.tgzlinux-06bq:/data/software/ # cd xdebug-2.2.1/ # 编译安装xdebuglinux-06bq:/data/software/xdebug-2.2.1/ # phpizelinux-06bq:/data/software/xdebug-2.2.1/ # ./configure --with-php-config=/usr/local/services/php/bin/php-config --enable-xdebuglinux-06bq:/data/software/xdebug-2.2.1/ # makelinux-06bq:/data/software/xdebug-2.2.1/ # sudo make installInstalling shared extensions: /usr/local/services/php/lib/php/extensions/no-debug-non-zts-20090626/ +----------------------------------+ | | | INSTALLATION INSTRUCTIONS | | ========================= | | | | See http://xdebug.org/install.php#configure-php for instructions | | on how to enable Xdebug for PHP. | | | | Documentation is available online as well: | | - A list of all settings: http://xdebug.org/docs-settings.php | | - A list of all functions: http://xdebug.org/docs-functions.php | | - Profiling instructions: http://xdebug.org/docs-profiling2.php | | - Remote debugging: http://xdebug.org/docs-debugger.php | | | | | | NOTE: Please disregard the message | | You should add "extension=xdebug.so" to php.ini | | that is emitted by the PECL installer. This does not work for | | Xdebug. | | | +----------------------------------+linux-06bq:/data/software/xdebug-2.2.1/ # cp /usr/local/services/php/lib/php/extensions/no-debug-non-zts-20090626/xdebug.so /usr/local/services/php/extensions/ # 修改php配置文件################################################################add the following line to php.ini: zend_extension="/wherever/you/put/it/xdebug.so" (for non-threaded use of PHP, for example the CLI, CGI or Apache 1.3 module)or: zend_extension_ts="/wherever/you/put/it/xdebug.so" (for threaded usage of PHP, for example the Apache 2 work MPM or the the ISAPI module). Note: In case you compiled PHP yourself and used --enable-debug you would have touse zend_extension_debug=. From PHP 5.3 onwards, you always need to use thezend_extension PHP.ini setting name, and not zend_extension_ts, nor zend_extension_debug.However, your compile options (ZTS/normal build; debug/non-debug) still need to matchwith what PHP is using.################################################################linux-06bq:/data/software/xdebug-2.2.1/ # vim /usr/local/services/php/etc/php.ini # zend_extension=/usr/local/services/php/extensions/xdebug.so # 检测xdebug是否加载成功（两种方法，php -m或输出phpinfo()结果）linux-06bq:/data/software/xdebug-2.2.1/ # php -m|grep xdebugxdebuglinux-06bq:/data/software/xdebug-2.2.1/ # php -r "phpinfo();" |grep xdebugxdebugxdebug support => enabledxdebug.auto_trace => Off => Offxdebug.cli_color => 0 => 0xdebug.collect_assignments => Off => Offxdebug.collect_includes => On => Onxdebug.collect_params => 0 => 0xdebug.collect_return => Off => Offxdebug.collect_vars => Off => Offxdebug.coverage_enable => On => Onxdebug.default_enable => On => Onxdebug.dump.COOKIE => no value => no valuexdebug.dump.ENV => no value => no valuexdebug.dump.FILES => no value => no valuexdebug.dump.GET => no value => no valuexdebug.dump.POST => no value => no valuexdebug.dump.REQUEST => no value => no valuexdebug.dump.SERVER => no value => no valuexdebug.dump.SESSION => no value => no valuexdebug.dump_globals => On => Onxdebug.dump_once => On => Onxdebug.dump_undefined => Off => Offxdebug.extended_info => On => Onxdebug.file_link_format => no value => no valuexdebug.idekey => no value => no valuexdebug.max_nesting_level => 100 => 100xdebug.overload_var_dump => On => Onxdebug.profiler_aggregate => Off => Offxdebug.profiler_append => Off => Offxdebug.profiler_enable => Off => Offxdebug.profiler_enable_trigger => Off => Offxdebug.profiler_output_dir => /tmp => /tmpxdebug.profiler_output_name => cachegrind.out.%p => cachegrind.out.%pxdebug.remote_autostart => Off => Offxdebug.remote_connect_back => Off => Offxdebug.remote_cookie_expire_time => 3600 => 3600xdebug.remote_enable => Off => Offxdebug.remote_handler => dbgp => dbgpxdebug.remote_host => localhost => localhostxdebug.remote_log => no value => no valuexdebug.remote_mode => req => reqxdebug.remote_port => 9000 => 9000xdebug.scream => Off => Offxdebug.show_exception_trace => Off => Offxdebug.show_local_vars => Off => Offxdebug.show_mem_delta => Off => Offxdebug.trace_enable_trigger => Off => Offxdebug.trace_format => 0 => 0xdebug.trace_options => 0 => 0xdebug.trace_output_dir => /tmp => /tmpxdebug.trace_output_name => trace.%c => trace.%cxdebug.var_display_max_children => 128 => 128xdebug.var_display_max_data => 512 => 512xdebug.var_display_max_depth => 3 => 3OLDPWD => /data/software/xdebug-2.2.1_SERVER["OLDPWD"] => /data/software/xdebug-2.2.1 # 最后重启服务器或php-fpm即可(根据当前服务器加载PHP模式而定)
3.测试用例
简单的测试用例如下：
<?phpheader( 'X-Test: Testing' );setcookie( "TestCookie", "test-value" );var_dump( xdebug_get_headers() );
输出如下：
array(2) { [0] => string(15) "X-Test: Testing" [1] => string(33) "Set-Cookie: TestCookie=test-value"}
高级测试用例——查看变量的zval值
$a = array(1, 2, 3);$b =& $a;$c =& $a[2]; xdebug_debug_zval('a');
输出如下：
a: (refcount=2, is_ref=1)=array(3) { [0] =>(refcount=1, is_ref=0)= int(1) [1] =>(refcount=1, is_ref=0)= int(2) [2] =>(refcount=2, is_ref=1)= int(3)}
开始Xdebug之旅吧，少年！【Documentation for: Xdebug 2】