环境
centos7
thinkphp 5.0
think-worker 1.0.1
Workerman version:3.5.30
PHP version:5.6.9
thinkphp 5.0使用workerman，启动workerman服务端报错
pcntl_signal() has been disabled for security reasons in file /www/wwwroot/shop/vendor/workerman/workerman/Worker.php on line 1107 pcntl_fork() has been disabled for security reasons in file /www/wwwroot/shop/vendor/workerman/workerman/Worker.php on line 1514
问题原因：pcntl_signal、pcntl_fork 等系列函数被禁用了
解决方案：找到 php.ini 文件并定位到 disable_functions 字段，将其后的 pcntl_signal、pcntl_fork等系列函数删掉。
宝塔面板操作步骤：软件商店（已安装） -> PHP5.6 ->设置-> 禁用函数，将pcntl_signal、pcntl_fork等系列删除即可。
非生产环境，可以将 disable_functions 字段后内容留空。
thinkphp 5.0报错pcntl_signal() has been disabled for security reasons问题解决
原文：https://www.cnblogs.com/zqifa/p/13218440.html