debug mysqli query with or die mysqli_error

Question

I don\'t know what is wrong.

$result = $db->query(\"INSERT INTO post_items(`post_id`,`content`,`date`,`user_id`,`category_id`) 
    VALUES (\'\".$postid.\", \         


        

Answer 1

You have a problem with single quotes. You have a ' just before your $postid, but not one after. This means that the SQL query will be seeing '$postid, ' as your first variable and then being confused about the remained.

Try changing your SQL to read:

$result = $db->query("INSERT INTO post_items(`post_id`,`content`,`date`,`user_id`,`category_id`) 
VALUES ('".$postid."', '".$content."', '".$date."', '".$user_id."', '".$category_id."')");

Hope that helps.