# 进入PHP源码包扩展目录
cd /data/soft/PHP/PHP-5.6.3/ext/pcntl
/usr/bin/PHPize
./configure --with-PHP-config=/usr/local/PHP/bin/PHP-config
make
make install

# 增加pcntl.so 到 PHP.ini文件中
vim /usr/local/PHP/etc/PHP.ini
extension = pcntl.so

# 重启PHP-fpm
/etc/init.d/PHP-fpm restart