CentOS 6.4
Xampp 7.1.12
下载PHP7.1.12的源码包
yum install gmp-devel
yum install m4
tar -xvf php-7.1..tar.xz
cd /root/php-7.1./ext/gmp
/opt/lampp/bin/phpize
./configure --with-php-config=/opt/lampp/bin/php-config
make && make install
/opt/lampp/bin/php -m | grep gmp
/opt/lampp/lampp reloadapache
reload apache 之前 记得在 php.ini里面 写extension="/opt/lampp/lib/php/extensions/no-debug-non-zts-20160303/gmp.so"