php多维数组如何获取值

This is my php array $data.

这是我的php数组$ data。

    Array
   ( 
   [upcoming] => Array 
              ( 
              [webinars] => Array 
                          ( 
                           [0] => Array 
                                 ( 
                                 [webinarKey] => 123456 
                                 [subject] => webinar title ...
                                 [times] => Array
                                         (
                                        [0] => Array
                                            (
                                           [startTime] => 2014-04-03T00:00:00Z

Please check my code below. I want to get values of "webinarkey" and "subject" and "start date - with date formatted" and put them into my select box. I can now populate "webinarkey and "subject". Thank you all to help to to populate "webinarkey and subject" but now i want to show "start date with date format as well.

请检查下面的代码。我想得到“webinarkey”和“subject”以及“开始日期 - 日期格式化”的值，并将它们放入我的选择框中。我现在可以填充“webinarkey和”主题“。谢谢大家帮忙填写”webinarkey和subject“，但现在我想显示”日期格式的开始日期“。

  echo '<form method="POST"><select>';
  foreach ($data["upcoming"]["webinars"] as $webinar) {
  echo '<option value="' . htmlspecialchars($webinar["webinarKey"]) . '">' . htmlspecialchars($webinar["subject"]) . htmlspecialchars($webinar["times"]["startTime"]) . '</option>';

}
    echo '</select></form>';

Please help me to show start date as well.

请帮我看一下开始日期。

3 个解决方案

#1

$data = array(/**/);
foreach ($data["upcoming"]["webinars"] as $webinar) {
    echo '<option value="' . htmlspecialchars($webinar["webinarKey"]) . '">' . htmlspecialchars($webinar["subject"]) . '</option>';
}

From what I gather the only array you need to loop over is $data["upcoming"]["webinars"].

从我收集的内容中，您需要循环的唯一数组是$ data [“coming”] [“webinars”]。

Ensure your output HTML is valid and your data is escaped properly.

确保输出HTML有效，并且您的数据已正确转义。

#2

Since you are trying to access a value in a multidimensional array, you cannot use -> as that is for properties of objects. Instead you need to access it like a normal array: $array[key]

由于您尝试访问多维数组中的值，因此不能使用 - >，因为它适用于对象的属性。相反，你需要像普通数组一样访问它：$ array [key]

Updated Code:

更新的代码：

echo '<select>';
foreach ($webinars as $obj)
{
    foreach ($obj['webinars'] as $ob)
    {

            echo '<option value='.$ob['webinarKey'].'>'.$ob['subject'].'</option>';

    }
}
echo '</select>';

#3

You're trying to use properties, it's an array not an object.

您正在尝试使用属性，它是一个数组而不是对象。

You need to use $ob['----'] instead of $ob-> notation

你需要使用$ ob ['----']而不是$ ob->表示法

echo '<select>';
foreach ($webinars as $obj)
{
    foreach ($obj['webinars'] as $ob)
    {

            echo '<option value='.$ob['webinarKey'].'>'.$ob['subject'].'</option>';

    }
}
echo '</select>';

#1

$data = array(/**/);
foreach ($data["upcoming"]["webinars"] as $webinar) {
    echo '<option value="' . htmlspecialchars($webinar["webinarKey"]) . '">' . htmlspecialchars($webinar["subject"]) . '</option>';
}