查询中的Php / MYSql错误

Question

I there any problem on my code??? If its ok then why i am always get this error

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'add = 'Myaddress' WHERE id = '' at line 7 in C:****\class\class.admin.php on line 160

Here is my Code:

function EditClient($uname,$email,$pname,$cname,$mob,$add,$cid)
    {
        $query = $this->dbh->prepare("
                UPDATE client SET 
                uname = :username,
                email = :email,
                pname = :pname,
                cname = :cname,
                mob = :mob,
                add = :addr
                WHERE id = :id ");


        $query->execute(array(
                ':username' => $uname,
                ':email' => $email,
                ':pname' => $pname,
                ':cname' => $cname,
                ':mob' => $mob,
                ':addr' => $add,
                ':id' => $cid
                )); //here is the line 160

        return $query->rowCount();
    }

Where the value of $cid is "Myaddress"

Answer 1

The error is caused by using a reserved word ADD

add = :addr

You need to back-tick it

`add` = :addr

http://dev.mysql.com/doc/refman/5.0/en/reserved-words.html