下面的代码给出了错误,我可能语法错误,我不知道在哪里。错误是:near '(``last_online``) VALUE ('now()) WHERE (users.id = 55)' at line 1
。
PHP代码:
<?php
include 'dbc.php';
session_start();
$user_ip = $_SERVER['REMOTE_ADDR'];
$id = $_SESSION['user_id'];
$sql_insert1 = "UPDATE `users` SET (`last_online`)
VALUES
('now()) WHERE (users.id = $id)";
mysql_query($sql_insert1) or die("Insertion Failed:" . mysql_error());
$sql_insert2 = "UPDATE `users` SET (`users_ip`)
VALUES
('$user_ip') WHERE (users.id = $id)";
mysql_query($sql_insert2) or die("Insertion Failed:" . mysql_error());