php.net手册有一些可靠的解释和例子，用户贡献的stdClass是什么，我特别喜欢这个http://php.net/manual/en/language.oop5.basic.php#92123, https://stackoverflow.com/a/1434375/2352773。

stdClass is the default PHP object. stdClass has no properties, methods or parent. It does not support magic methods, and implements no interfaces. When you cast a scalar or array as Object, you get an instance of stdClass. You can use stdClass whenever you need a generic object instance. stdClass is NOT a base class! PHP classes do not automatically inherit from any class. All classes are standalone, unless they explicitly extend another class. PHP differs from many object-oriented languages in this respect. You could define a class that extends stdClass, but you would get no benefit, as stdClass does nothing.

stClass是一个由php自己创建的空类，只能由php使用。 因为它不仅仅是一个“空”类， php使用stdClass将数组转换为对象样式 如果你需要使用stdClass，我推荐两个更好的选择: 1-使用数组(比类快得多) 2-创建你自己的空类并使用它

//example 1
$data=array('k1'=>'v1' , 'k2'=>'v2',....);

//example 2
//creating an empty class is faster than instances an stdClass
class data={}
$data=new data();
$data->k1='v1';
$data->k2='v2';

是什么让人们考虑使用对象样式而不是数组样式??

实际上，我尝试创建空的stdClass，并将速度与空类进行比较。

class emp{}

然后继续创建1000个stdClasses和emps…空类在1100微秒左右完成，而stdClasses在1700微秒以上完成。所以我想最好创建自己的虚拟类来存储数据，如果你想使用对象那么糟糕(数组写和读都快得多)。

同样的,

$myNewObj->setNewVar = 'newVal'; 

生成一个stdClass对象-自动强制转换

我今天把这个单词拼错了:

$GLOBASLS['myObj']->myPropertyObj->myProperty = 'myVal';

太酷了!

stdClass在PHP中是经典的泛型类。它没有内置的属性或方法。基本上，它用于类型转换，创建具有动态属性的对象等。如果您有javascript背景，您可以确定为

$o = new \stdClass();

等于

const o = {};

它创建空对象，稍后由程序控制流填充。

php.net手册有一些可靠的解释和例子，用户贡献的stdClass是什么，我特别喜欢这个http://php.net/manual/en/language.oop5.basic.php#92123, https://stackoverflow.com/a/1434375/2352773。

stdClass is the default PHP object. stdClass has no properties, methods or parent. It does not support magic methods, and implements no interfaces. When you cast a scalar or array as Object, you get an instance of stdClass. You can use stdClass whenever you need a generic object instance. stdClass is NOT a base class! PHP classes do not automatically inherit from any class. All classes are standalone, unless they explicitly extend another class. PHP differs from many object-oriented languages in this respect. You could define a class that extends stdClass, but you would get no benefit, as stdClass does nothing.