安装Xdebug

wget http://xdebug.org/files/xdebug-2.2.7.tgz
tar zxvf xdebug-2.2.7.tgz
cd xdebug-2.2.7
phpize
./configure --enable-xdebug --with-php-config=/usr/local/php/bin/php-config
make
make install

配置