Question

我是PHP的新手，我正在开发一个非常小的可视化项目从我们的自动牌照读取器（Openalpr）到我们的叉车的车牌，以显示已到达装载区（第2区）的巫婆

一切都在Ubuntu 16.04.1上运行

我遇到的问题是MySQL数据库中读取的铭牌的时间戳是UTC时间格式：2018-04-05 08:56:33.320000我希望它在瑞典本地时间没有毫秒（CET），例如：2018-04-05 10:56:33

我该怎么做？所有帮助表示赞赏!!

我的PHP代码：

<?php
require_once 'dbconfig.php';
try {
 $pdo = new PDO("mysql:host=$host;dbname=$dbname", $username, $password);
 $sql = 'SELECT epoch_time_start,
                best_plate
                FROM front_alprgroup
                ORDER BY epoch_time_start DESC LIMIT 30';
 $q = $pdo->query($sql);
 $q->setFetchMode(PDO::FETCH_ASSOC);
 } catch (PDOException $e) {
  die("Could not connect to the database $dbname :" . $e->getMessage());
 }
 ?>
   <!DOCTYPE html>
<html>
<head>
    <title>Lorrys in Zone 2</title>
</head>
<body>
    <div id="container">
        <h1>Lorrys in Zone 2</h1>
        <table class="table table-bordered table-condensed">
            <thead>
                <tr>
                    <th>Lorry</th>
                    <th>Time</th>
                </tr>
            </thead>
            <tbody>
                <?php while ($row = $q->fetch()): ?>
                    <tr>
                 <td><?php echo htmlspecialchars($row['best_plate']) ?></td>
          <td><?php echo htmlspecialchars($row['epoch_time_start']); ?></td>
           </tr>
                <?php endwhile; ?>
            </tbody>
        </table>
</body>
</div>
</html>

网络服务器上的“Fancy”HTML输出： Lorrys in Zone 2 on webpage

Answer 1

你走了：

$dateTime = '2018-04-05 08:56:33.320000';
$utc = 'UTC';
$swedish = 'Europe/Stockholm';


$newDateTime = new DateTime($dateTime, new DateTimeZone($utc));
$newDateTime->setTimezone(new DateTimeZone($swedish));
echo $newDateTime->format('Y-m-d H:i:s');

所以我通过将上面的代码添加为函数来更新代码块，然后使用该函数在循环中显示日期。

<?php
require_once 'dbconfig.php';

function convertDate($dateTime){

$utc = 'UTC';
$swedish = 'Europe/Stockholm';

$newDateTime = new DateTime($dateTime, new DateTimeZone($utc));
$newDateTime->setTimezone(new DateTimeZone($swedish));
return $newDateTime->format('Y-m-d H:i:s');

}

try {
 $pdo = new PDO("mysql:host=$host;dbname=$dbname", $username, $password);
 $sql = 'SELECT epoch_time_start,
                best_plate
                FROM front_alprgroup
                ORDER BY epoch_time_start DESC LIMIT 30';
 $q = $pdo->query($sql);
 $q->setFetchMode(PDO::FETCH_ASSOC);
 } catch (PDOException $e) {
  die("Could not connect to the database $dbname :" . $e->getMessage());
 }
 ?>
   <!DOCTYPE html>
<html>
<head>
    <title>Lorrys in Zone 2</title>
</head>
<body>
    <div id="container">
        <h1>Lorrys in Zone 2</h1>
        <table class="table table-bordered table-condensed">
            <thead>
                <tr>
                    <th>Lorry</th>
                    <th>Time</th>
                </tr>
            </thead>
            <tbody>
                <?php while ($row = $q->fetch()): ?>
                    <tr>
                 <td><?php echo htmlspecialchars($row['best_plate']) ?></td>
          <td><?php echo convertDate($row['epoch_time_start']); ?></td>
           </tr>
                <?php endwhile; ?>
            </tbody>
        </table>
</body>
</div>
</html>

将UTC时间从MySQL中的列转换为PHP输出中的本地时间（瑞典）

1 个答案: