MySQL - 无法更新多个列

Question

每当我尝试从PHP更新选定行中的列时，它都会顺利通过，但不会在数据库中更新。

$query = "UPDATE news SET title = '$title', 
                  cover = '$cover', desc = '$newz', category = '$category' 
        WHERE id = $newz_select_id";

Answer 1

desc是 reserved keyword in MySQL 。用反引号（`）代替它。

$query = "UPDATE news SET title = '$title', 
              cover = '$cover', `desc` = '$newz', category = '$category' 
    WHERE id = $newz_select_id";

顺便说一句，你的代码很容易被sql注入。为了避免它，请学习并使用PHP PDO或PHP mySQLi Extensions。

See this Link: Best way to prevent SQL Injection