Please do not use this in an production env.
生产环境勿用。 代码简直没法看。
$ /$PHP7/bin/phpize
$ ./configure --with-php-config=/$PHP7/bin/php-config
$ make && make install
edit php.ini, add a new line:
extension=xhprof.so
make sure it works:
php7 -m |grep xhprof