http functions
- response_header - redirect to system template
- phpjob - request url and leave it run in background
responseheader($code) {#responseheader}
redirect to system template (template/system/sys_xxx.php) and exit script execution
{{lang:php}}
// not found
if(!$is_article) response_header(404);
// forbidden
if(!$is_auth) response_header(403);
phpjob($url,$postdata=Array()) {#phpjob}
post data to url and leave run in backgorund




