What is the use of stdClass class in php?

When the PHP kernel performs module initialization operation, this function will be loaded automatically . In this way, the registration operation of the stdClass class will also be executed. The stdClass class is a class with no member variables and no member methods. All its magic methods, parent classes, interfaces, etc. are set to NULL during initialization. Since we cannot dynamically add methods to a class in PHP, this class can only be used to process dynamic attributes, which is also a common usage. Therefore, the following method will not trigger the set interceptor. The code is as follows:

$user = new stdClass();
$user->name = 'gouki';

. What is this code used for?
Open the manual and

search

stdClass. You will find that there is almost no introduction in the manual. If you search Google again, you will see almost all English explanations.
In fact, stdClass only became popular in PHP5. And stdClass is also a reserved class of zend. It seems to have no other effect. There is also almost no explanation. Or, we can understand it this way: stdClass is a base class of PHP. Almost all classes inherit
this class, so it can be new at any time, and this variable can become a
object. At the same time, this base class has a special feature, that is, it has no methods. Whenever a variable of new stdClass() is used, it is impossible to use $a->test(). Or, we can understand it this way. Because of the uniqueness of PHP5's object
, when the object is called anywhere, it is of the reference address type, so it will consume less resources. When assigning values ​​to it in
other pages, it is modified directly instead of referencing a copy. For example:
The code is as follows:

$user = new stdClass();
$user->name = 'gouki';
$myUser = $user;
$myUser->name = 'flypig';

If you are in the PHP4 era, such code is consuming system resources. Because:

$myUser = $user;

This creates a copy. Therefore, in PHP4, it is used like this:

The code is as follows:

$myUser = & $user;

Some people say, why not use an array? Wouldn't arrays be more convenient? And for weakly typed programs like PHP, using arrays should be the most convenient.

really. Arrays should be the most convenient to use in programs. However, every time the array is referenced ($a = $b), a copy is actually created. Moreover, after the array is unset, it still occupies memory (this is what I heard) People say it, I haven’t tested it... and I don’t know how to test it. If anyone knows, please tell me, thank you)

However, there is also a function arrayobject in the standard class library of SPL, which can directly convert an array into an object. This is also a good idea.

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