check if the query results empty row mysqli

Question

I am using this code, but I don\'t understand how to check if the query returns zero rows. How can I check that?

$results = $mysqli->query(\"SELECT ANNOUN         


        

Answer 1

You can use the num_rows on the dataset to check the number of rows returned. Example:

$results = $mysqli->query("SELECT ANNOUNCE_NUMBER,ANNOUNCEMENTS,ANNOUNCE_TYPE,POST_DATE FROM home WHERE ANNOUNCE_NUMBER NOT LIKE $excludewelcome AND ANNOUNCE_NUMBER NOT LIKE $excludenews ORDER BY ANNOUNCE_NUMBER DESC LIMIT $position, $items_per_group");
if ($results) { 

    if($results->num_rows === 0)
    {
        echo 'No results';
    }
    else
    {
        //output results from database
        while($obj = $results->fetch_object())
        {
            if($obj->ANNOUNCE_TYPE=='NEWSEVENTS')
            {
                $realstring='News and Events';
            }
            else
            {
            $realstring='Welcome Note';
            }

            echo '
'.$realstring.'';
            echo '
'; 
            echo '('.$obj->POST_DATE.' ) '.$obj->ANNOUNCEMENTS.'
';
        }
    }
}