## 问题1：configure: WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers. 解决 ``` wget https://sourceforge.net/projects/re2c/files/0.16/re2c-0.16.tar.gz tar zxf re2c-0.16.tar.gz && cd re2c-0.16 ./configure make && make install ``` ## 问题二：pecl install Xdebug 报错： ``` [root@izbp1hy7gff0kss8ropz11z xdebug.dakaifa.cn]# pecl install Xdebug WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update pecl/xdebug requires PHP (version >= 5.5.0), installed version is 5.4.16 No valid packages found install failed ``` 解决： ``` pecl update-channels ``` 注：解决但是不能再用 `pecl install Xdebug`!这一方法过时了！ ## 问题三：cannot find autoconf `yum install autoconf` https://www.mnstory.net/2017/10/14/phpstorm-remote-debug-with-xdebug/