PHP得到以下错误：“致命错误：未捕获的异常'PDOException'”

Question

I'm trying to retrieve a single row with the following function:

function get_registrar($key){
    global $db;

    $query = 'SELECT * FROM registration WHERE key = :key';
    $statement = $db->prepare($query);
    $statement->bindValue(':key', $key);
    $statement->execute();
    $result = $statement->fetch();
    $statement->closeCursor();
    return $result;
}

And I keep getting "Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]:" error messages. Any idea why this might be? Thanks

Answer 1

key is a reserved key word

so backtick it as

 `key`

$query = 'SELECT * FROM registration WHERE `key` = :keyval';

Here is the list of reserved keywords

https://dev.mysql.com/doc/refman/5.5/en/reserved-words.html