如何记录用户上次登录日期?我尝试过使用 $query = "UPDATE users SET laSTLogindate = NOW() WHERE username = "username"
来测试它的工作原理,但遗憾的是没有任何效果。我显然想确保记录经过身份验证的日期用户也正确。
我应该把它放在这个脚本的什么地方?
<?php
require("config.php");
$submitted_username = '';
if(!empty($_POST)){
$query = "
SELECT
id,
username,
password,
salt,
email
FROM users
WHERE
username = :username
";
$query_params = array(
':username' => $_POST['username']
);
try{
$stmt = $db->prepare($query);
$result = $stmt->execute($query_params);
}
catch(PDOException $ex){ die("Failed to run query: " . $ex->getMessage()); }
$login_ok = false;
$row = $stmt->fetch();
if($row){
$check_password = hash('sha256', $_POST['password'] . $row['salt']);
for($round = 0; $round < 65536; $round++){
$check_password = hash('sha256', $check_password . $row['salt']);
}
if($check_password === $row['password']){
$login_ok = true;
}
}
if($login_ok){
unset($row['salt']);
unset($row['password']);
$_SESSION['user'] = $row;
$query = "UPDATE users SET lastlogindate = NOW() WHERE username = "deason";
header("Location: main.php");
die("Redirecting to: main.php");
}
else{
print("Login Failed.");
$submitted_username = htmlentities($_POST['username'], ENT_QUOTES, 'UTF-8');
}
}
?>
最佳答案
语法高亮暴露了这一点:这是一个引用问题。您在查询中对字符串和字符串值使用双引号。
$query = "UPDATE users SET lastlogindate = NOW() WHERE username = "deason";
应该是:
$query = "UPDATE users SET lastlogindate = NOW() WHERE username = 'deason'";
关于php - 捕获用户上次登录日期,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19965721/