yum install libevent -y
wget https://pecl.php.net/get/event-2.3.0.tgz
tar -zxvf event-2.3.0.tgz
cd event-2.3.0
/www/server/php/72/bin/phpize
./configure --with-php-config=/www/server/php/72/bin/php-config
make && make install
echo "extension=event.so" >> /www/server/php/72/etc/php.ini
service php-fpm-72 reload

注意：每一条都是一个指令，分开执行，千万别一股脑的全复制执行……

二、完成后输入这条命令

/www/server/php/72/bin/php -m |grep event