Online PHP editor | output for 4tAqu

@ 2017-07-20T02:57:21Z

<?php

function &readPrivate($object, $k, $context = null) {

  $closure = function & () use ($k) {
    return $this->$k;
  };

  $binding = Closure::bind(
    $closure,
    $object,
    $context);

  $value = & $binding->__invoke();

  return $value;
}


  
class B {
    private $x = 'xb';
    public $z = 'zb';
}

class C {
    private $x = 'xc';
    private $y = 'yc';
    public $z = 'zc';
}

$c = new C;

var_dump(readPrivate($c, 'x', $c));
# var_dump(readPrivate($c, 'x', B::class));

Output for 5.6.38, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: string(2) "xc"
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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