Question

#Do a database query and return all rows of GET ID  
$result=$mysqli->query("SELECT * FROM products WHERE product-id = '$id'");

    while($row=$result->fetch_array())
    {
        $id             =     $row['product-id'];
        $pagename       =     $row['product-name'];
        $description    =     $row['product-description'];
        $samples        =     $row['product-sample-designs'];
    }


# free result set
mysqli_free_result($result);
}

#close connection
mysqli_close($mysqli);

If i remove WHERE product-id = '$id' # Result is no errors and first row is displayed.

As the code shows I get this error: “Fatal error: Call to a member function fetch_array() on a non-object”

I’m just trying to get all the data in a row where my GET id = the TABLE product-id. This process is much easier in MYSQL. Im new to this OOP style and I find it confusing. An explanation is greatly appreciated. ~THANKS!

Answer 1

If the column name contains hyphens, you need to enclose it by back-ticks.

$result=$mysqli->query("SELECT * FROM products WHERE `product-id` = '$id'");

But it is not a good idea of using hyphens in column/table names, use underscore _ would be better.