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run code in 300+ PHP versions simultaneously

@ 2019-06-18T15:03:20Z

<?php
namespace bed {
class A {
    private $id=5;
    protected $b;
    public $c;
    public function __sleep()
    {
        return ['id'];
    }
}

class B extends A{
    public function __sleep(){
        return  parent::__sleep();
    }
}

class D extends A{
    public function __sleep(){
        return ["\0bed\A\0id"];
    }
}

class CoolD extends A {
    private $d;
    protected $e;
    public $f;
    
    public function __sleep(){
        $allProperties = [];
        $reflection  = new \ReflectionClass($this);
        do{
            foreach ($reflection->getProperties() as $prop) {
                $allProperties[($prop->isPrivate()
                    ? "\0" . $prop->getDeclaringClass()->getName() . "\0" . $prop->getName()
                    : $prop->getName())] = true;
            }
        }while($reflection = $reflection->getParentClass());
        return array_keys($allProperties);
    }
}

class C extends A{
}

// var_dump(serialize(new C)); - not working
// var_dump(serialize(new B)); - not working
var_dump(serialize(new D));
var_dump(serialize(new CoolD));
}

Output for 7.1.25 - 7.1.30, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: string(36) "O:5:"bed\D":1:{s:9:"bed\Aid";i:5;}" string(108) "O:9:"bed\CoolD":6:{s:12:"bed\CoolDd";N;s:4:"*e";N;s:1:"f";N;s:4:"*b";N;s:1:"c";N;s:9:"bed\Aid";i:5;}"
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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