PHP-SQL查询语法错误

Question

I'm having a hard time finding the error that exists in my script. Can anyone help me spot it?

        case "process_movie_order":
        // handle POST
        if ($_POST) {
            //Drop "order" column and Re-ADD it to reset ID #'s
            $droppedresult = mysql_query("ALTER TABLE videos DROP COLUMN order");
            $addedresult = mysql_query("ALTER TABLE videos ADD order int NOT NULL");
            $totalMovies = count($_POST['movie']);
            // use $i to increment the order number
            $i=$totalMovies;
            // loop through post array in the order it was submitted
            foreach ($_POST['movie'] as $video_id) {
                // update the row                    
                $query = sprintf("UPDATE videos SET order='%s' WHERE video_id='%s'",
                    mysql_real_escape_string($i),
                    mysql_real_escape_string($video_id));

                $result = mysql_query($query);

                 if(!$result) {
                     echo mysql_error();
                    echo 'MySQL query failed. Please report this error to the author of this script.<br />
                        <br />
                        <a href="'.$script_location.'?action=show_landing_page">Back</a><br />';
                    break;
                }             
                // decrease order number to make the next movie lower
                $i--;
            }
        }

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 'order='55' WHERE video_id='video55'' at line 1

Thanks!

Answer 1

order is a reserved keyword in MySQL. You must specify the column name instead. Put backticks around "order".