Online PHP editor | output for EjdNt

@ 2016-03-07T15:05:59Z

<?php

class Translator1
{
    private $translator2;
    
    public function __construct(Translator2 $t2)
    {
        $this->translator2 = $t2;
    }
}

class Translator2
{
    private $translator3;
    
    public function __construct(Translator3 $t3)
    {
        $this->translator3 = $t3;
    }
}

class Translator3 extends ParentTranslator
{
    // none found, look for 'x' in parent class
}

class ParentTranslator {
    private $x = 'LOL';
    
    public function __construct()
    {
        $this->x = 'LOL';
    }
}

function accessPrivatePropertyOf($object, ...$properties)
{
    if (empty($properties))
    {
        return $object;
    }
    
    $reflector = new \ReflectionClass($object);

    $property = array_shift($properties);
    
    echo 'Looking in: ' . (is_object($object) ? get_class($object) : gettype($object)) . ' for property: ' . $property . PHP_EOL;

    if (!$reflector->hasProperty($property))
    {
        /** Try parent class **/
        $parent = $reflector->getParentClass();
        
        echo 'BUT... does not exist, looking in parent: ' . $object->getName() . ' instead...' . PHP_EOL;

        if (!$parent->hasProperty($property))
        {
            throw new \Exception;
        }

        $prop = $parent->getProperty($property);
        $prop->setAccessible(true);
        $property = $prop->getValue($object);
        
        //echo 'We found property with name: ' . $prop->getName() . ' and value: ' . $prop->getValue($object) . PHP_EOL;
        
        return accessPrivatePropertyOf($property, ...$properties);
    }

    $prop = $reflector->getProperty($property);
    $prop->setAccessible(true);
    $property = $prop->getValue($object);

    return accessPrivatePropertyOf($property, ...$properties);
}

$t = new Translator1(new Translator2(new Translator3));

// Shows no value for x WHYY?Y??
var_dump(accessPrivatePropertyOf($t, 'translator2', 'translator3', 'x'));

Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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: Looking in: Translator1 for property: translator2 Looking in: Translator2 for property: translator3 Looking in: Translator3 for property: x Fatal error: Uncaught Error: Call to undefined method Translator3::getName() in /in/EjdNt:55 Stack trace: #0 /in/EjdNt(75): accessPrivatePropertyOf(Object(Translator3), 'x') #1 /in/EjdNt(75): accessPrivatePropertyOf(Object(Translator2), 'translator3', 'x') #2 /in/EjdNt(81): accessPrivatePropertyOf(Object(Translator1), 'translator2', 'translator3', 'x') #3 {main} thrown in /in/EjdNt on line 55
Process exited with code 255.
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 Looking in: Translator1 for property: translator2 Looking in: Translator2 for property: translator3 Looking in: Translator3 for property: x Fatal error: Uncaught Error: Call to undefined method Translator3::getName() in /in/EjdNt:55 Stack trace: #0 /in/EjdNt(75): accessPrivatePropertyOf(Object(Translator3), 'x') #1 /in/EjdNt(75): accessPrivatePropertyOf(Object(Translator2), 'translator3', 'x') #2 /in/EjdNt(81): accessPrivatePropertyOf(Object(Translator1), 'translator2', 'translator3', 'x') #3 {main} thrown in /in/EjdNt on line 55
Process exited with code 255.
Output for 5.6.0 - 5.6.40: Looking in: Translator1 for property: translator2 Looking in: Translator2 for property: translator3 Looking in: Translator3 for property: x Fatal error: Call to undefined method Translator3::getName() in /in/EjdNt on line 55
Process exited with code 255.
Output for 5.5.0 - 5.5.38: Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/EjdNt on line 37
Process exited with code 255.

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