How the php reflection class gets the private properties obtained by the constructor

class test{
    private $a=array();
    public function __construct() {
        $this->geta ();
    }
    private function geta(){
        $b [] = 1;
        $b [] = 2;
        
        $this->a = $b;
        // return
    }
}


//
$ref_class = new ReflectionClass("test");
$geta= $ref_class->newInstance();
$method = $ref_class->getmethod("geta");
$method->setAccessible(true);
$a = $method->invoke($rongyuclass); //geta

there is such a class. Now the private method geta does not return any data, but the constructor assigns a value to the private attribute a. When I directly use reflection to get the variable $a, I can only get a null value. How to perform the construction first and then get the assigned private attribute a?

Php
Mar.03,2021

$ref = new ReflectionClass ('test');
$a = $ref- > getProperty (' a');
$a-> setAccessible (true); / / set access to attribute a
var_dump ($a-> getValue (new test)); 

class test{
    private $a=array();
    public function __construct() {
        $this->geta ();
    }
    private function geta(){
        $b [] = 1;
        $b [] = 2;
        
        $this->a = $b;
        // return
    }
}

$test = new test;

$closure = function() {
    return $this->a;
};
// rebinds the closure to the $test object
$closure  = $closure->bindTo($test, $test);
print_r($closure());

Previous: The nuxt.js page reported an error and could not find the page?

Next: Angular5 form form validation

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1ea9bf9-47d43.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ea9bf9-47d43.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?