Online PHP editor | output for BVbaA

@ 2018-10-31T12:50:17Z

<?php

class A {
    private $_b;
    
    function __construc($b) {
        $this->_b = $b;
    }
    function __get($name)
    {
        echo "get $name \n";
        return $this->{'_' . $name};
       
    }
    
    function __isset($name)
    {
        echo "isset $name\n";
        return true;
    }

}


class B {
    private $_c;
    
        function __construc($c) {
        $this->_c = $c;
    }
    function __get($name)
    {
        echo "get $name \n";
        return $this->{'_' . $name};
    }
    
    function __isset($name)
    {
        echo "isset $name\n";
        return true;
    }
}
$c = new B('plop');
$b = new B($c);
$a = new A($b);

var_dump($a);


var_dump(isset($a->b->c));

Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: object(A)#3 (1) { ["_b":"A":private]=> NULL } isset b get b bool(false)
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 object(A)#3 (1) { ["_b":"A":private]=> NULL } isset b get b bool(false)
Output for 5.6.38: object(A)#3 (1) { ["_b":"A":private]=> NULL } get b bool(false)

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