从mysql表中删除WHERE列等于值AND列2等于value2

Question

Having some trouble getting this query to work correctly. 在使此查询正常工作时遇到一些麻烦。

mysql_query("DELETE FROM `table` WHERE `id` = '$id' AND 'username' = '$username' ");

tried replacing variables with actual data and running it in phpmyadmin to no success 尝试用实际数据替换变量并在phpmyadmin中运行它没有成功

any thoughts? 有什么想法吗？

Answer 1

You're quoting the username column with ' instead of ` 您使用'而不是`来引用用户名列

use: 采用：

mysql_query("DELETE FROM `table` WHERE `id` = '$id' AND `username` = '$username'");

not: 不：

mysql_query("DELETE FROM `table` WHERE `id` = '$id' AND 'username' = '$username'");

Answer 2

Please, for the love of the internet, don't built an SQL query yourself. 对于对互联网的热爱，请不要自己构建SQL查询。 Use PDO . 使用PDO 。