获取PHP stdObject中的第一个元素 [英] Get first element in PHP stdObject

问题描述

我有一个看起来像这样的对象(存储为$ videos)

I have an object (stored as $videos) that looks like this

object(stdClass)#19 (3) {
  [0]=>
  object(stdClass)#20 (22) {
    ["id"]=>
    string(1) "123"

  etc...

我只想获取第一个元素的ID，而不必循环访问它.

I want to get the ID of just that first element, without having to loop over it.

如果它是一个数组，我会这样做:

If it were an array, I would do this:

$videos[0]['id']

它以前是这样工作的:

$videos[0]->id

但是现在我在上面显示的行上收到一个错误无法将stdClass类型的对象用作数组...".可能是由于PHP升级所致.

But now I get an error "Cannot use object of type stdClass as array..." on the line shown above. Possibly due to a PHP upgrade.

那么我如何不循环就获得第一个ID?有可能吗?

So how do I get to that first ID without looping? Is it possible?

谢谢！

推荐答案

更新2019

继续OOPS的最佳实践，@ MrTrick的答案必须是 标记为正确，尽管我的回答提供了一个被黑的解决方案，但事实并非如此 最好的方法.

Moving on to the best practices of OOPS, @MrTrick's answer must be marked as correct, although my answer provides a hacked solution its not the best method.

使用{}

示例:

$videos{0}->id

这样，您的对象不会被破坏，并且可以轻松地遍历对象.

This way your object is not destroyed and you can easily iterate through object.

对于PHP 5.6及更低版本，请使用此

For PHP 5.6 and below use this

$videos{0}['id']

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