Description
void 
trigger_error ( string error_msg [, int level])
   This function can be used to output an error message using Smarty.
   level parameter can be one of the values
   used for the PHP
   trigger_error()
   function, i.e. E_USER_NOTICE,
   E_USER_WARNING, etc. By default it's E_USER_WARNING.
  
    See also
    $error_reporting,
    debugging
    and
    Troubleshooting.