如何使用DB :: insert作为预处理语句LARAVEL

Question

I am trying to make my insert query protected against sql injection. But I am having issues getting this to work. any ideas? I have tried several things.

 $bullets = Input::get('bullet_content');
        $product_id = Input::get('product_id');
        $user_id = Input::get('user_id');
        $retailer_id = Input::get('retailer_id');
        $date = date("Y-m-d H:i:s");
        foreach ($bullets as $bullet){


            $query = "'INSERT INTO bullets(product_id, user_id,bullet_content, bullet_deleted, created_at, updated_at) 
                        VALUES('?','?','?','?','?','?')', [$product_id,$user_id,$bullet,'N',$date,$date]";


                        DB::insert($query);
        }
        return back()->with('message','Features add successfully!');

When I try this I get the following errror:

SQLSTATE[07002]: [Microsoft][ODBC Driver 11 for SQL Server]COUNT field incorrect or syntax error (SQL: 'INSERT INTO bullets(product_id, user_id,bullet_content, bullet_deleted, created_at, updated_at) VALUES('?','?','?','?','?','?')', [1,1,can't,'N',2017-11-10 16:28:44,2017-11-10 16:28:44])

I have also tried:

 $bullets = Input::get('bullet_content');
        $product_id = Input::get('product_id');
        $user_id = Input::get('user_id');
        $retailer_id = Input::get('retailer_id');
        $date = date("Y-m-d H:i:s");
        foreach ($bullets as $bullet){


            $query = "'INSERT INTO bullets(product_id, user_id,bullet_content, bullet_deleted, created_at, updated_at) 
                        VALUES('?','?','?','?','?','?')' ";
            $values = [$product_id,$user_id,$bullet,'N',$date,$date];

                        DB::insert($query,$values);
        }
        return back()->with('message','Features add successfully!');

and got the following error:

SQLSTATE[42000]: [Microsoft][ODBC Driver 11 for SQL Server][SQL Server]Incorrect syntax near 'INSERT INTO bullets(product_id, user_id,bullet_content, bullet_deleted, created_at, updated_at) VALUES('. (SQL: 'INSERT INTO bullets(product_id, user_id,bullet_content, bullet_deleted, created_at, updated_at) VALUES('1','1','can't','N','2017-11-10 16:33:43','2017-11-10 16:33:43')' )

Answer 1

You don't need to quote question marks. Furthermore you can initialize $query before loop and use it as your prepared query inside the foreach:

$bullets = Input::get('bullet_content');
$product_id = Input::get('product_id');
$user_id = Input::get('user_id');
$retailer_id = Input::get('retailer_id');
$date = date("Y-m-d H:i:s");
$query = "INSERT INTO bullets (product_id, user_id,bullet_content, bullet_deleted, created_at, updated_at) 
                       VALUES (?, ?, ?, ?, ?, ?)";
foreach ($bullets as $bullet) {
    $values = [$product_id,$user_id,$bullet,'N',$date,$date];
    DB::insert($query, $values);
}
return back()->with('message','Features add successfully!');