Swoole 사용자 정의 오류 방법

namespace App;
use Core\AbstractInterface\ErrorHandlerInterface;
class Test implements ErrorHandlerInterface
{
    function handler( $msg,$file = null,$line = null,$errorCode = null,$trace )
    {
        echo "文件{$file}的第{$line}行，错误：{$msg}";
    }
    function display($msg,$file = null,$line = null,$errorCode = null,$trace )
    {
    }
    function log( $msg,$file = null,$line = null,$errorCode = null,$trace )
    {
    }
}

Di::getInstance()->set(SysConst::ERROR_HANDLER,Test::class);