TysonAndre/runkit7のインストール:
git clone https://github.com/TysonAndre/runkit7.git
cd runkit7
/usr/local/php7/bin/phpize
./configure --disable-runkit-sandbox --disable-runkit-super --with-php-config=/usr/local/php7/bin/php-config
make
make test
sudo make install
sudo vim /usr/local/php7/lib/php.ini (extension=runkit.soを追加)