--TEST-- __serialize() mechanism in igbinary --SKIPIF-- --FILE-- $this->prop, 42 => $this->prop2]; } public function __unserialize(array $data) { $this->prop = 'unser' . $data["value"]; $this->prop2 = 'unser' . $data[42]; } } $test = new Test; $test->prop = "foobar"; $test->prop2 = "barfoo"; $s = igbinary_serialize($test); echo bin2hex($s) . "\n"; var_dump(igbinary_unserialize($s)); ?> --EXPECT-- 000000021704546573741402110576616c75651106666f6f626172062a1106626172666f6f object(Test)#2 (2) { ["prop"]=> string(11) "unserfoobar" ["prop2"]=> string(11) "unserbarfoo" }