如何通过全文搜索允许多列搜索

Question

i'm trying to implement a fulltext search for my website and my problems is that the match() syntax is not allowing use of multiple columns. can anyone help?

here is the code:

//
$sql = "SELECT * FROM tenders 
    INNER JOIN categories ON categories.category_id=tenders.category_id 
    INNER JOIN provinces ON provinces.province_id=tenders.province_id 
    WHERE MATCH (details,category, province) 
        AGAINST('$searchterm' IN NATURAL LANGUAGE MODE)";

$search_count = $db->query($search_sql);

//amount displayed per page
$per_page = 1;
//number of pages
$pages = ceil($search_count->num_rows/$per_page);

in the browser, i'm getting an error:

Notice: Trying to get property of non-object in C:\\xampp\\htdocs\\dailytenders\\search.php on line 39

how can i solve this. i have altered tables to engine=MyISAM and FULLTEXT on details, category and province columns.

Answer 1

In your code you have this:

$search_count = $db->query($search_sql);

i think that must be this instead:

$search_count = $db->query($sql);

I used in past the MATCH function against multiple columns and worked good.