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<?php //Source: https://bugs.php.net/bug.php?id=64896 class bad { private $_private = array(); public function __construct() { $this->_private[] = 'oh noes'; } public function __destruct() { //echo "bad::destructor\n"; global $bar; $bar = $this->_private; } } $foo = new stdclass; $foo->foo = $foo; $foo->bad = new bad; print_r($foo); gc_disable(); for ($i=0; $i<9; $i++) { $deep_clone = unserialize(serialize($foo)); gc_collect_cycles(); var_dump($i); }
Output for 5.3.0 - 5.3.2, 5.4.45, 5.6.13 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
stdClass Object ( [foo] => stdClass Object *RECURSION* [bad] => bad Object ( [_private:bad:private] => Array ( [0] => oh noes ) ) ) int(0) int(1) int(2) int(3) int(4) int(5) int(6) int(7) int(8)
Output for 5.3.3 - 5.3.29, 5.4.0 - 5.4.4, 5.4.20 - 5.4.44, 5.5.0 - 5.5.28, 5.6.0 - 5.6.12
stdClass Object ( [foo] => stdClass Object *RECURSION* [bad] => bad Object ( [_private:bad:private] => Array ( [0] => oh noes ) ) ) int(0) int(1) int(2)
Process exited with code 139.
Output for 5.5.29 - 5.5.38
stdClass Object ( [foo] => stdClass Object *RECURSION* [bad] => bad Object ( [_private:bad:private] => Array ( [0] => oh noes ) ) ) int(0) int(1) int(2) int(3)
Process exited with code 139.
Output for 5.4.5 - 5.4.19
stdClass Object ( [foo] => stdClass Object *RECURSION* [bad] => bad Object ( [_private:bad:private] => Array ( [0] => oh noes ) ) ) int(0) int(1)
Process exited with code 139.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
stdClass Object ( [foo] => stdClass Object *RECURSION* [bad] => bad Object ( [_private:private] => Array ( [0] => oh noes ) ) ) Fatal error: Call to undefined function gc_disable() in /in/vWLK3 on line 27
Process exited with code 255.
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/vWLK3 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/vWLK3 on line 6
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/vWLK3 on line 6
Process exited with code 255.

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