Php 代码>，它出现了，所以问题出现在我接下来的查询中。我知道这个问题太愚蠢了。掌纹 $query = 'UPDATE `'.$masterapp_users_table.'` SET `login` = "'.htmlspecialchars(strip_ta

代码>，它出现了，所以问题出现在我接下来的查询中。我知道这个问题太愚蠢了。掌纹

$query = 'UPDATE `'.$masterapp_users_table.'` SET `login` = "'.htmlspecialchars(strip_tags($_POST['login'])).'", `pass` = "'.md5(htmlspecialchars(strip_tags($_POST['pass']))).'", `email` = "'.htmlspecialchars(strip_tags($_POST['email'])).'", `firstname` = "'.htmlspecialchars(strip_tags($_POST['fn'])).'", `secondname` = "'.htmlspecialchars(strip_tags($_POST['sn'])).'" WHERE `login` = "'.htmlspecialchars(strip_tags($_POST['previouslogin'])).'"';
            echo $query.'<br />';
            mysql_query($query) or die(mysql_error());

UPDATE `masterapp_users` SET `login` = "asdasdasd", `pass` = "a3dcb4d229de6fde0db5686dee47145d", `email` = "asdasdasd", `firstname`
= "asdasdasd", `secondname` = "asdasdasd" WHERE `login` = "88888881"<br />Unknown column 'login' in 'where clause'

CREATE TABLE IF NOT EXISTS `masterapp_users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `login` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  `pass` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  `email` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  `firstname` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  `secondname` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `email` (`email`),
  UNIQUE KEY `login` (`login`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=33 ;

 UPDATE `'.$masterapp_users_table.'` SET `login` ...

SELECT `column` FROM `table`

SELECT `column` FROM `database`.`table`

$query = '
    UPDATE `' . $masterapp_users_table . '`
    SET `login` = "' . mysql_real_escape_string($_POST['login']) . '",
    `pass` = "' . md5($_POST['pass']) . '",
    `email` = "' . mysql_real_escape_string($_POST['email']) . '",
    `firstname` = "' . mysql_real_escape_string($_POST['fn']) . '",
    `secondname` = "' . mysql_real_escape_string($_POST['sn']) . '"
    WHERE `login` = "' . mysql_real_escape_string($_POST['previouslogin']) . '"
';
// To display it in your browser:
echo htmlspecialchars($query) . '<br />';
// To run it:
mysql_query($query) or die(mysql_error());