PHP, Header send 500 server error
Ref: https://stackoverflow.com/questions/4162223/how-to-send-500-internal-server-error-error-from-a-php-script
header($_SERVER["SERVER_PROTOCOL"]." 500 Internal Server Error",true,500);
Ref: https://stackoverflow.com/questions/4162223/how-to-send-500-internal-server-error-error-from-a-php-script
header($_SERVER["SERVER_PROTOCOL"]." 500 Internal Server Error",true,500);