Centos 安装v8js
yum install php-pear
yum install re2c
yum install v8-devel
pecl install v8js-0.1.3
// if failed, need to download v8js-0.1.3 and manually install it
// modify b8js.cc and add the blow info line 1
#define PHP_V8_VERSION "0.1.3"
phpize
./configure --with-v8js
make
make test
make install
echo "extension=v8js.so" >> /etc/php.ini