我有代码:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<?php
session_start();
$conn = mysqli_connect("localhost","root","");
mysqli_select_db($conn, "test");
?>
<?php
if (isset($_GET['logout'])==1)
{
session_destroy();
$_SESSION['ishere'] = false;
}
?>
<?php
if (isset($_POST['login_button']))
{
$login = $_POST['login'];
$password = $_POST['password'];
if (mysqli_num_rows(mysqli_query($conn, "SELECT login, password FROM user WHERE login = '".$login."' AND password = '".$password."';")) > 0)
{
mysqli_query($conn, "UPDATE user SET 'login_time' = NOW() WHERE login = '".$login."';");
$_SESSION['ishere'] = true;
$_SESSION['login'] = $login;
}
else echo "Something went wrong. Try again!";
}
if (isset($_SESSION['ishere'])==true)
{
echo "Hello <b>".$_SESSION['login']."</b><br><br>";
$time = mysqli_fetch_all(mysqli_query($conn, "SELECT login_time FROM user WHERE login='".$_SESSION['login']."'"));
echo "Czas ostatniego logowanie ";
foreach ($time as $i) {
echo date('Y-m-d H:i:s', implode($i));
}
echo '<a href="?logout=1">[Logout]</a>';
}
?>
<?php if (isset($_SESSION['ishere'])==false): ?>
<form method="POST" action="login.php">
<b>Login:</b> <input type="text" name="login"><br>
<b>Password:</b> <input type="password" name="password"><br>
<input type="submit" value="Login" name="login_button">
</form>
<?php endif; ?>
<?php mysqli_close($conn); ?>
</body>
</html>
字段login_time
在我的数据库中作为int,我将其更改为日期。当我登录时,我总是将相同的时间戳转换为日期:1970-01-01 01:00:00
。我做错了什么?我认为这个代码在我登录时将更新我的数据库并将login_time
设置为当前时间,然后当我再次登录时,将打印新的:(我和我使用的函数如NOW(),time(), date(&#39; Ymd H:i:s&#39;)和CURRENT_TIMESTAMP。如何写入db正确的时间并读取它?
EDIT。我改变了我的代码:
mysqli_query($conn, "UPDATE user SET login_time = now() WHERE login = '".$login."';");
$result = mysqli_query($conn, "SELECT login_time FROM user WHERE login='".$_SESSION['login']."'");
$time = mysqli_fetch_assoc($result);
echo date('Y-m-d H:i:s', $time["login_time"]);
现在我有相同的日期,即使我退出并再次登录。日期是2038年......
EDIT2。 UNIX_TIMESTAMP()
是一个解决方案:)
答案 0 :(得分:1)
不要在列名称周围使用引号(当需要时最终使用backtics)引用是字面值
"UPDATE user SET login_time = NOW() WHERE login = '".$login."';");