1.http://xdebug.org/wizard.php
访问地址，然后把php.ini的信息html放到文本里面提交
刷新后就会出现详细的安装信息
Tailored Installation Instructions
Summary
Xdebug installed: no
Server API: FPM/FastCGI
Windows: no
Zend Server: no
PHP Version: 5.4.34
Zend API nr: 220100525
PHP API nr: 20100525
Debug Build: no
Thread Safe Build: no
Configuration File Path: /etc
Configuration File: /etc/php.ini
Extensions directory: /usr/local/php/lib/php/extensions/no-debug-non-zts-20100525
Instructions
Download xdebug-2.3.3.tgz
Unpack the downloaded file with tar -xvzf xdebug-2.3.3.tgz
Run: cd xdebug-2.3.3
Run: phpize (See the FAQ if you don't have phpize.
As part of its output it should show:
Configuring for:
...
Zend Module Api No: 20100525
Zend Extension Api No: 220100525
If it does not, you are using the wrong phpize. Please follow this FAQ entry and skip the next step.
Run: ./configure
Run: make
Run: cp modules/xdebug.so /usr/local/php/lib/php/extensions/no-debug-non-zts-20100525
Edit /etc/php.ini and add the line
zend_extension = /usr/local/php/lib/php/extensions/no-debug-non-zts-20100525/xdebug.so
Restart the webserver
2.安装
下载文件
tar -xvzf xdebug-2.3.3.tgz
cd xdebug-2.3.3
/usr/local/php/bin/phpize
./configure --enable-xdebug --with-php-config=/usr/local/php/bin/php-config
make
cp modules/xdebug.so /usr/local/php/lib/php/extensions/no-debug-non-zts-20100525
vim /etc/php.ini
加入：
zend_extension = /usr/local/php/lib/php/extensions/no-debug-non-zts-20100525/xdebug.so
保存退出
/etc/init.d/php-fpm restart
然后就可以开始使用xdebug了。
Linux安装xdebug.（DebianUbuntu）：http://www.linuxdiyf.com/linux/5977.html
Netbeans配置Xdebug：http://www.linuxdiyf.com/linux/1553.html
Ubuntu下使用Xdebug分析PHP程序的瓶颈：http://www.linuxdiyf.com/linux/939.html