How does php verify that the properties of a class are private? Don't use reflexes.

how does php verify that the properties of a class are private? Don"t use reflexes.

Php
Apr.15,2022 
<?php



class PTest {

    private $v;

    public function __construct(){
        $this->v=123;
    }
}


$p = new PTest();

try {
    echo $p->v;
}catch (Error $e){
    if(strstr($e->getMessage(),'access private property')){
        echo "\n";
    }
}


<?php
class someClass
{
    public function publicFunc() 
    {
    }
    private function privateFunc() 
    {
    }
}
var_dump(is_callable([new someClass,'publicFunc']));//bool(true)
var_dump(is_callable([new someClass,'privateFunc']));//bool(false)

if you just get the pulbic attribute, you can use get_class_vars outside the class 

<?php

class PTest {

    private $v = 1;
    public $c = 2;
    protected $b = 3;
}

var_dump(get_class_vars(PTest::class));

Previous: Can the access_token of the official account be saved in Session?

Next: The problem of floating point accuracy, why 0.1mm 0.15mm 0.1 = 5.1?

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-64f5-1b394d7-2b8fe.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b394d7-2b8fe.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?