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run code in 150+ php & hhvm versions
Bugs & Features
<?php class A { private $a; private $b; public function __construct($a) { $this->a = $a; $this->b = $a; } public function __sleep() { return array('a'); } public function __wakeUp() { $this->__construct($this->a); } public function getA() { return $this->a; } public function getB() { return $this->b; } } $a = new A('a'); $serialized = serialize($a); $unserialized = unserialize($serialized); var_dump($serialized); var_dump($unserialized); var_dump($unserialized->getA()); var_dump($unserialized->getB());
Output for 5.3.0 - 7.1.0
string(31) "O:1:"A":1:{s:4:"Aa";s:1:"a";}" object(A)#2 (2) { ["a":"A":private]=> string(1) "a" ["b":"A":private]=> string(1) "a" } string(1) "a" string(1) "a"
Output for 5.0.2 - 5.0.4, 5.1.0 - 5.2.17
string(31) "O:1:"A":1:{s:4:"Aa";s:1:"a";}" object(A)#2 (2) { ["a:private"]=> string(1) "a" ["b:private"]=> string(1) "a" } string(1) "a" string(1) "a"
Output for 5.0.5

Process exited with code 139.
Output for 5.0.0 - 5.0.1
string(22) "O:1:"A":1:{s:1:"a";N;}" object(A)#2 (3) { ["a:private"]=> NULL ["b:private"]=> NULL ["a"]=> NULL } NULL NULL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/mn5og on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/mn5og on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/mn5og on line 5
Process exited with code 255.