“where 子句”中的未知列“locals_id”

Question

I'm working on a recipe page where a user clicks a recipe link and the data(full recipe) is displayed on the following page, but I can't seem to get it to work. When I try to run the page I get the error "Unknown column 'locals_id' in 'where clause." Here is my code so far.

?php 
    //connection variables
        $hostname = 'hostname';
        $username = 'username';
        $password = '********';
        $database = 'database';  

        //connect to the server
        $dbc = mysql_connect($hostname, $username, $password) or die("Unable to connect to mySQL server");

        //connect to the database
        mysql_select_db($database) or die("Unable to select database");


        $recipe_link = "-1";
        if (isset($_GET['locals_id'])) {
          $recipe_link = $_GET['locals_id'];
        }

        $query_recipeDetails = sprintf("SELECT * FROM recipe WHERE locals_id = %s", GetSQLValueString($recipe_link, "int"));
        $result = mysql_query($query_recipeDetails, $dbc) or die(mysql_error());
        $row_recipeDetails = mysql_fetch_assoc($result);



?>

I'm pretty new when it comes to php so I've really been tearing my hair out on this one. I looked through some of the other problems that were similar to mine but those didn't seem to help either. Any help with this would be greatly appreciated

Answer 1

Query and code seems correct.

Check your column name carefully. there might be some typo mistake or check for case sensitivity . locals_id might be local_id

Answer 2

Check the column name is similar to "locals_id" in database tables and these are case sensitive, otherwise give column name between this symbol ` in the query.

eg.,

`locals_id`

Answer 3

Run from mysql console:

SHOW CREATE TABLE recipe;

or run

SHOW FIELDS FROM recipe;

And you'll find out the correct names for the columns. Anyway MySQL column names are case insensitive, so you have a misstype in you script probably.

Answer 4

Thanks for all the help everyone. I figured it out. It was indeed something to do with locals_id not being a column name. The correct name was recipe_id. I feel silly for not seeing it.