MySQL:"SQL语法中的错误......靠近键......"？

Question

我找到了一个非常酷的密码丢失密码,但这一行让我有问题

$r = mysql_query('INSERT INTO `keys` (username,key, vreme) VALUES ("'.$user.'", "'.$acckey.'", "'.$keyexp.'"') or die(mysql_error());

错误

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 'key, vreme) VALUES ("123123", "1ed2f5100a26298a55b2935cbea7d4a0", "1337991670"' at line 1

Answer 1

KEY是一个保留字.如架构对象名称中所述:

如果标识符包含特殊字符或是保留字,则必须在引用时引用它.(例外:在限定名称中的句点之后的保留字必须是标识符,因此不需要引用它.)

[ deletia ]

标识符引号字符是反引号(" `"):

mysql> SELECT * FROM `select` WHERE `select`.id > 100;

如果ANSI_QUOTES启用了SQL模式,则还允许在双引号内引用标识符:

mysql> CREATE TABLE "test" (col INT);
ERROR 1064: You have an error in your SQL syntax...
mysql> SET sql_mode='ANSI_QUOTES';
mysql> CREATE TABLE "test" (col INT);
Query OK, 0 rows affected (0.00 sec)

因此:

mysql_query("INSERT INTO `keys` (username, `key`, vreme) VALUES ('$user', '$acckey', '$keyexp') ")

Answer 2

key是一个保留的关键字 - 将其括在反引号中

`key`