<分区>
我正在检查 user_id(它在一个 session 中保存)- 这有效。然后，我为数据库表 click_count 为该用户运行 SELECT 查询。我正在检查该用户是否有任何记录，即:$page_count。如果没有，我希望我的 INSERT 语句运行以将该用户与其他数据一起添加到数据库表中。
我不明白的部分是我的 UPDATE 查询似乎一直在运行。例如，无论我使用查询登录哪个用户，都只会更新数据库表中的唯一用户。 IE:Bob 是 click_count 表中的唯一用户，如果我用 Pete 登录，Bob 的记录正在更新。
我已经测试了 $page_count 的值，它等于 0，所以我的 INSERT 应该正在运行。我也尝试过 if ($page_count === 0) {
有人看到我遗漏了什么吗？
$curPage = $_SERVER['PHP_SELF'];
$clicks = 0;
$setup = 0;
$page_total_count = 0;
var_dump($user_id);
$click_sql = "
SELECT *
FROM click_count
WHERE user_id = ?
AND page_url = ?
";
$click_stmt = $con->prepare($click_sql);
$click_stmt->execute(array($user_id, $curPage));
$click_stmt_rows = $click_stmt->fetchAll(PDO::FETCH_ASSOC);
$page_count = $click_stmt->rowCount();
foreach ($click_stmt_rows as $click_stmt_row) {
$setup_status = $click_stmt_row['setup'];
$page_total_count = $click_stmt_row['page_count'];
}
if ($page_count == 0) {
$click_insert_sql = "
INSERT INTO click_count
(user_id, page_url, page_count, setup)
VALUES(?, ?, ?, ?)
ON DUPLICATE KEY UPDATE page_count=page_count+1;
";
$click_insert_stmt = $con->prepare($click_insert_sql);
$click_insert_stmt->execute(array($user_id, $curPage, 1, $setup));
}
else {
$click_update_sql = "
UPDATE click_count
SET page_count=page_count+1
WHERE user_id = ?
AND page_url = ?
";
$click_update_stmt = $con->prepare($click_update_sql);
$click_update_stmt->execute(array($user_id, $curPage));
}
表格
click_count
CREATE TABLE `click_count` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_id` int(11) NOT NULL,
`page_url` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`page_count` int(11) NOT NULL,
`setup` int(5) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `user_id` (`user_id`),
UNIQUE KEY `page_url` (`page_url`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci