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<?php class A { public $a = array(); public function __construct() { $this->a[] = new B(1); $this->a[] = new B(2); } } class B implements Serializable { public $b; public function __construct($c) { $this->b = new C($c); } public function serialize() { return serialize(clone $this->b); } public function unserialize($data) { $this->b = unserialize($data); } } class C { public $c; public function __construct($c) { $this->c = $c; } } $a = unserialize(serialize(new A())); print $a->a[0]->b->c . "\n"; print $a->a[1]->b->c . "\n";
Output for 8.1rc1 - rc2
Deprecated: B implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/DR8T3 on line 14 1 2
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.22 - 5.4.45, 5.5.5 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.30, 7.4.0 - 7.4.23, 8.0.0 - 8.0.10
1 2
Output for 5.4.0 - 5.4.21, 5.5.0 - 5.5.4
1 Notice: Trying to get property of non-object in /in/DR8T3 on line 47
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/DR8T3 on line 14
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/DR8T3 on line 14
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/DR8T3 on line 5
Process exited with code 255.
Output for 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/DR8T3 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/DR8T3 on line 5
Process exited with code 255.

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