How to define empty objects in php

This article mainly shares with you the method of defining empty objects in PHP. Sometimes we directly define the subscript value of an array that does not exist, and no error will be reported. However, when we define an object that does not exist, an error will be reported. This At this time, we can just define an empty object. There are three methods:

<?php$obj1 = new \stdClass; 
// Instantiate stdClass object$obj2 = new class{}; 
// Instantiate anonymous class$obj3 = (object)[]; 
// Cast empty array to objectvar_dump($obj1); 
// object(stdClass)#1 (0) {}var_dump($obj2); 
// object(class@anonymous)#2 (0) {}var_dump($obj3); 
// object(stdClass)#3 (0) {}

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