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<?php class SerializableClass implements Serializable { public $sharedProp; public function __construct($prop) { $this->sharedProp = $prop; } public function __set($key, $value) { $this->$key = $value; } public function serialize() { return serialize(get_object_vars($this)); } public function unserialize($data) { $ar = unserialize($data); if ($ar === false) { return; } foreach ($ar as $k => $v) { $this->__set($k, $v); } } } spl_autoload_register(function($class) { $testPropertyObj = new stdClass(); $testPropertyObj->name = 'test'; $array = [ 'obj1' => new SerializableClass($testPropertyObj), 'obj2' => new SerializableClass($testPropertyObj), ]; var_dump(unserialize(serialize($array))); class X {} }); unserialize('O:1:"X":0:{}');
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: SerializableClass 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/cZqVf on line 3 array(2) { ["obj1"]=> object(SerializableClass)#5 (1) { ["sharedProp"]=> object(stdClass)#6 (1) { ["name"]=> string(4) "test" } } ["obj2"]=> object(SerializableClass)#7 (1) { ["sharedProp"]=> object(stdClass)#8 (1) { ["name"]=> string(4) "test" } } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: SerializableClass 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/cZqVf on line 3 array(2) { ["obj1"]=> object(SerializableClass)#5 (1) { ["sharedProp"]=> object(stdClass)#6 (1) { ["name"]=> string(4) "test" } } ["obj2"]=> object(SerializableClass)#7 (1) { ["sharedProp"]=> object(stdClass)#8 (1) { ["name"]=> string(4) "test" } } }
Output for 5.4.7 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
array(2) { ["obj1"]=> object(SerializableClass)#5 (1) { ["sharedProp"]=> object(stdClass)#6 (1) { ["name"]=> string(4) "test" } } ["obj2"]=> object(SerializableClass)#7 (1) { ["sharedProp"]=> object(stdClass)#8 (1) { ["name"]=> string(4) "test" } } }
Output for 5.4.0 - 5.4.6
array(2) { ["obj1"]=> object(SerializableClass)#5 (1) { ["sharedProp"]=> object(stdClass)#6 (1) { ["name"]=> string(4) "test" } } ["obj2"]=> object(SerializableClass)#7 (1) { ["sharedProp"]=> UNKNOWN:0 } }
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/cZqVf on line 32
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/cZqVf on line 29
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/cZqVf on line 29
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/cZqVf on line 3
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 '{' in /in/cZqVf on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/cZqVf on line 3
Process exited with code 255.

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