GETPOST($paramname, $check= 'alphanohtml', $method=0, $filter=null, $options=null, $noreplace=0)
Return value of a param into GET or POST supervariable.
if(!defined('NOREQUIREMENU')) if(!function_exists("llxHeader")) top_httphead($contenttype= 'text/html', $forcenocache=0)
Show HTTP header.
dol_syslog($message, $level=LOG_INFO, $ident=0, $suffixinfilename= '', $restricttologhandler= '', $logcontext=null)
Write log message into outputs.