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<?php class F { private string $bar; public function __construct(private string $foo, string $bar){ $this->bar = $bar; } public function __sleep(): array { return array_keys(get_object_vars($this)); } public function getFoo():string { return $this->foo; } public function getBar():string { return $this->bar; } } $g = new F('this is a private variable', 'so is this'); $s = serialize($g); var_export($s); $n = unserialize($s); echo \PHP_EOL; echo $n->getFoo(); echo \PHP_EOL; echo $n->getBar();
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
'O:1:"F":2:{s:6:"' . "\0" . 'F' . "\0" . 'bar";s:10:"so is this";s:6:"' . "\0" . 'F' . "\0" . 'foo";s:26:"this is a private variable";}' this is a private variable so is this
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