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<?php class child implements Serializable { public function serialize() { return null; } public function unserialize($serialized) { } } class test { private $elems = []; public function add($something) { $this->elems[] = $something; } } $child = new child(); $t = new test(); $t->add(1); $t->add('test'); var_dump(unserialize(serialize($t))); $t->add($child); var_dump(unserialize(serialize($t))); $t->add($child); var_dump(unserialize(serialize($t)));
Output for git.master_jit, git.master, rfc.property-hooks
Deprecated: child 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/cTPe9 on line 3 object(test)#3 (1) { ["elems":"test":private]=> array(2) { [0]=> int(1) [1]=> string(4) "test" } } object(test)#3 (1) { ["elems":"test":private]=> array(3) { [0]=> int(1) [1]=> string(4) "test" [2]=> NULL } } object(test)#3 (1) { ["elems":"test":private]=> array(4) { [0]=> int(1) [1]=> string(4) "test" [2]=> NULL [3]=> NULL } }

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