下载xdebug源码
打开https://xdebug.org/wizard.php，将phpinfo()的内容复制到表单中，最终会分析出我们需要的xdebug版本，
image.png
最终得知，本机需要的是xdebug-2.6.1，下载并解压到docker中，并进入相应的目录
安装编译环境
从skiychan/nginx-php7的说明中，了解到编译环境的依赖，安装之：
yum install -y gcc \
gcc-c++ \
autoconf \
automake \
libtool \
make \
cmake
编译
[root@69e52c4fa4d1 xdebug-2.6.1]# locate phpize
/usr/local/php/bin/phpize
[root@69e52c4fa4d1 xdebug-2.6.1]# /usr/local/php/bin/phpize
...
...
[root@69e52c4fa4d1 xdebug-2.6.1]# locate php-config
/usr/local/php/bin/php-config
[root@69e52c4fa4d1 xdebug-2.6.1]# ./configure --enable-xdebug --with-php-config=/usr/local/php/bin/php-config
....
....
[root@69e52c4fa4d1 xdebug-2.6.1]# make
...
Libraries have been installed in:
/data/www/xdebug-2.6.1/xdebug-2.6.1/modules
If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
- add LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution
- add LIBDIR to the `LD_RUN_PATH' environment variable
during linking
- use the `-Wl,--rpath -Wl,LIBDIR' linker flag
- have your system administrator add LIBDIR to `/etc/ld.so.conf'
See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
...
...
[root@69e52c4fa4d1 xdebug-2.6.1]# updatedb
[root@69e52c4fa4d1 xdebug-2.6.1]# locate extensions
/usr/lib64/python2.7/idlelib/config-extensions.def
/usr/local/php/include/php/Zend/zend_extensions.h
/usr/local/php/lib/php/extensions
/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718
/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/opcache.a
/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/opcache.so
...
...
[root@69e52c4fa4d1 xdebug-2.6.1]# cd /usr/local/php/lib/php/extensions/
[root@69e52c4fa4d1 extensions]# ls
no-debug-non-zts-20170718
[root@69e52c4fa4d1 extensions]# mkdir xdebug-2.6.1
[root@69e52c4fa4d1 extensions]# cp /data/www/xdebug-2.6.1/xdebug-2.6.1/modules/xdebug.so xdebug-2.6.1/
[root@69e52c4fa4d1 extensions]# cd xdebug-2.6.1/
[root@69e52c4fa4d1 xdebug-2.6.1]# ls
xdebug.so
...
...
[root@69e52c4fa4d1 etc]# /usr/local/php/bin/php -m
[PHP Modules]
bcmath
Core
...
...
[root@2ff4ac91b928 /]# locate php.ini
/usr/local/php/etc/php.ini
....
....
插入
zend_extension = /usr/local/php/lib/php/extensions/xdebug-2.6.1/xdebug.so
...
...
[root@69e52c4fa4d1 etc]# /usr/local/php/bin/php -m
[PHP Modules]
bcmath
Core
...
[Zend Modules]
Xdebug
[root@69e52c4fa4d1 etc]# ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.1 11688 2472 ? Ss 18:17 0:00 /bin/sh /start.sh
root 11 0.0 0.7 114044 15744 ? S 18:17 0:00 /usr/bin/python /usr/bin/supervisord -n -c /etc/supervisord.conf
root 14 0.0 0.8 113808 17048 ? S 18:17 0:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
root 15 0.0 0.2 45940 5804 ? S 18:17 0:00 nginx: master process /usr/local/nginx/sbin/nginx
www 16 0.0 1.2 67552 25080 ? S 18:17 0:00 nginx: worker process
www 17 0.0 1.2 67552 25104 ? S 18:17 0:00 nginx: worker process
www 18 0.0 1.2 67552 25104 ? S 18:17 0:00 nginx: worker process
www 19 0.0 1.2 67552 25080 ? S 18:17 0:00 nginx: worker process
www 20 0.0 1.2 67552 24672 ? S 18:17 0:00 nginx: worker process
www 21 0.0 1.2 67552 24672 ? S 18:17 0:00 nginx: worker process
www 22 0.0 0.7 113872 14812 ? S 18:17 0:00 php-fpm: pool www
www 23 0.0 0.7 113872 14864 ? S 18:17 0:00 php-fpm: pool www
root 24 0.0 0.1 11828 2980 pts/0 Ss 18:19 0:00 bash
root 6366 0.0 0.1 51716 3476 pts/0 R+ 19:01 0:00 ps aux
[root@69e52c4fa4d1 etc]# kill -USR2 14
这时phpinfo()中也有xdebug的信息了
