我目前对一种非常奇怪的行为感到失望，这种行为对我来说非常奇怪，即将php值回送到html表格单元格。

我只想循环遍历一个数组并将值打印到一个表中，但在特殊条件下只显示一些信息。

表外显示了这些值。

<?php

foreach ($mpbs_overview_tab4_bookings as $tab4_arr) {
 echo "<tr>";
  $tab4startDate = new DateTime($tab4_arr->starttime);
  $tab4endDate = new DateTime($tab4_arr->endtime);
  echo \'<td>\' . $tab4startDate->format(\'d.m.Y H:i\') .\'</td>\';
  echo \'<td>\' . $tab4endDate->format(\'d.m.Y\') .\'</td>\';
  echo \'<td>\' . $tab4_arr->username .\'</td>\';
 echo "</tr>";
}
?>

使用此代码，$tab4startDate->format(\'d.m.Y H:i\') 如图所示，$tab4endDate->format(\'d.m.Y\') 不正在添加H:i 到$tab4endDates格式的结果是，它会再次显示。

$tab4_arr->username 也未显示。如果我将内容更改为

echo "<td>";
 echo $tab4startDate->format(\'d.m.Y H:i\');
 echo $tab4_arr->username;
echo "</td>";

出于测试目的，用户名也是可见的。。。

有人知道我做错了什么吗？

这是我的阵列：

{"id":"185","starttime":"2017-11-26 00:00:00","endtime":"2017-11-29 00:00:00","username":"lsgit"},
{"id":"186","starttime":"2017-11-26 00:00:00","endtime":"2017-11-29 00:00:00","username":"lsgit"},
{"id":"187","starttime":"2017-11-19 00:00:00","endtime":"2017-11-22 00:00:00","username":"lsgit"},
{"id":"188","starttime":"2017-11-30 00:00:00","endtime":"2017-12-03 00:00:00","username":"lsgit"},
{"id":"189","starttime":"2017-12-05 00:00:00","endtime":"2017-12-08 00:00:00","username":"lsgit"},
{"id":"190","starttime":"2017-12-05 00:00:00","endtime":"2017-12-08 00:00:00","username":"lsgit"},
{"id":"191","starttime":"2017-12-05 00:00:00","endtime":"2017-12-08 00:00:00","username":"lsgit"}

<?php
echo \'<table>\';
foreach ($mpbs_overview_tab4_bookings as $tab4_arr) {
  $tab4_arr = json_decode($tab4_arr);
  echo \'<tr>\';
  $tab4startDate = new DateTime($tab4_arr->starttime);
  $tab4endDate = new DateTime($tab4_arr->endtime);
  echo \'<td>\' . $tab4startDate->format(\'d.m.Y H:i\') .\'</td>\';
  echo \'<td>\' . $tab4endDate->format(\'d.m.Y\') .\'</td>\';
  echo \'<td>\' . $tab4_arr->username .\'</td>\';
  echo \'</tr>\';
}
echo \'</table>\';
?>