IF NOT EXISTS(SELECT * FROM `user` WHERE `name`='Rutvij' AND `lang`='python') INSERTINTO `user` VALUES ('Rutvij', 'python', 25)ELSE UPDATE user SET `name`='Kanzaria它正在抛出错误,声明
1064 -您的SQL语法有错误
$r = mysql_query('INSERT INTO `keys` (username,key, vreme) VALUES ("'.$user.'", "'.$acckey.'", "'.$keyexp.'"') or die(mysql_error());You have an error in your SQL syntax; check the manual that correspondsto y