警告:从空值创建默认对象(典型解决方案不能解决问题) [英] Warning: Creating default object from empty value (typical solution not solving issue)

问题描述

注意:我已阅读有关如何解决此问题的有关 stackoverflow 的其他主题:在 PHP 中从空值创建默认对象?

NOTE: I've read the other topics on stackoverflow about how to solve this issue: Creating default object from empty value in PHP?

出于某种原因，我仍然收到警告消息:Creating default object from empty value

For some reason I still get the Warning message: Creating default object from empty value

我尝试了一些方法来修复警告:

I've tried a few things to fix the warning:

$data = new stdClass();
$data->result->complex->first_key = $old_data->result->complex;

也尝试过:

$data->result->complex = new stdClass();
$data->result->complex->first_key = $old_data->result->complex;

仍然收到警告:Creating default object from empty value 在上面 new stdClass() 初始化的行号上.

Still get the warning: Creating default object from empty value on the line number of the new stdClass() initialization above.

预期结果:如何正确初始化新的空对象?

Desired Outcome: How can I properly initialize the new empty object?

推荐答案

如果您想避免警告，您需要预先创建每个级别:

If you want to avoid the warning you'll need to pre-create each level:

$data = new stdClass();
$data->result = new stdClass();
$data->result->complex = new stdClass();
$data->result->complex->first_key = $old_data->result->complex;

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