xhprof php7.x安装

1. git clone https://github.com/longxinH/xhprof
2. cd xhprof/extension/
3. phpize
4. ./configure
5. make && make install
6. [xhprof] extension=xhprof.so xhprof.output_dir=/data/www/xhprof/save_output_dir 
7. brew services restart php@7.1
8. php -m | grep xhprof

[xhprof]
extension=xhprof.so
xhprof.output_dir=/data/www/xhprof/save_output_dir