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<?php readonly class Address { public function __construct( public string $street, public string $city, public string $state, public string $country, public string $postalCode, ){ } } readonly class Person { public function __construct( public string $name, public int $age, public Address $address, ){ } } $bob = new Person('Bob', 32, new Address('123 Main St', 'Testington', 'Test', 'Test', '12345')); $bobJson = json_encode($bob); $decodedBob = json_decode_class($bobJson, Person::class); if ($bob == $decodedBob){ echo 'These are the same person!', PHP_EOL; } else { echo 'We have different people here!', PHP_EOL; } function json_decode_class(string $json, string $class){ return construct_object(json_decode($json), $class); } function construct_object(stdClass $data, string $class){ $rc = new ReflectionClass($class); $properties = $rc->getConstructor()->getParameters(); $constructorArgs = []; foreach ($properties as $prop){ $type = $prop->getType(); if (property_exists($data, $prop->getName())){ $value = $data->{$prop->getName()}; if (!$type->isBuiltin()){ $value = construct_object($value, $type->getName()); } $constructorArgs[$prop->getName()] = $value; } } return $rc->newInstanceArgs($constructorArgs); }

Version	System time (s)	User time (s)	Memory (MiB)
8.4.12	0.014	0.006	20.57
8.4.11	0.009	0.012	22.51
8.4.10	0.012	0.009	17.78
8.4.9	0.010	0.008	18.70
8.4.8	0.015	0.007	17.89
8.4.7	0.016	0.004	17.80
8.4.6	0.011	0.004	18.73
8.4.5	0.011	0.010	18.91
8.4.4	0.010	0.010	17.48
8.4.3	0.003	0.017	20.68
8.4.2	0.006	0.009	17.69
8.4.1	0.006	0.003	19.46
8.3.25	0.009	0.009	18.73
8.3.24	0.010	0.011	16.72
8.3.23	0.010	0.010	16.64
8.3.22	0.011	0.006	17.38
8.3.21	0.006	0.012	18.41
8.3.20	0.006	0.003	16.51
8.3.19	0.013	0.005	18.68
8.3.18	0.011	0.008	16.66
8.3.17	0.018	0.000	17.16
8.3.16	0.011	0.003	18.25
8.3.15	0.006	0.010	21.00
8.3.14	0.012	0.006	16.66
8.3.13	0.006	0.003	18.22
8.3.12	0.006	0.003	18.46
8.3.11	0.005	0.003	18.71
8.3.5	0.006	0.013	16.58
8.2.29	0.013	0.006	22.07
8.2.28	0.011	0.005	18.40
8.2.27	0.010	0.010	17.04
8.2.26	0.019	0.000	18.90
8.2.25	0.013	0.006	16.55
8.2.24	0.011	0.007	16.55
8.2.23	0.017	0.003	16.77
8.2.10	0.016	0.006	18.66
8.1.33	0.011	0.008	21.68
8.1.32	0.009	0.005	16.20
8.1.31	0.007	0.007	16.79
8.1.30	0.015	0.004	15.94

Version

System time (s)

User time (s)

Memory (MiB)

8.4.12

0.014

0.006

20.57

8.4.11

0.009

0.012

22.51

8.4.10

0.012

0.009

17.78

8.4.9

0.010

0.008

18.70

8.4.8

0.015

0.007

17.89

8.4.7

0.016

0.004

17.80

8.4.6

0.011

0.004

18.73

8.4.5

0.011

0.010

18.91

8.4.4

0.010

17.48

8.4.3

0.003

0.017

20.68

8.4.2

0.006

0.009

17.69

8.4.1

0.006

0.003

19.46

8.3.25

0.009

18.73

8.3.24

0.010

0.011

16.72

8.3.23

0.010

16.64

8.3.22

0.011

0.006

17.38

8.3.21

0.006

0.012

18.41

8.3.20

0.006

0.003

16.51

8.3.19

0.013

0.005

18.68

8.3.18

0.011

0.008

16.66

8.3.17

0.018

0.000

17.16

8.3.16

0.011

0.003

18.25

8.3.15

0.006

0.010

21.00

8.3.14

0.012

0.006

16.66

8.3.13

0.006

0.003

18.22

8.3.12

0.006

0.003

18.46

8.3.11

0.005

0.003

18.71

8.3.5

0.006

0.013

16.58

8.2.29

0.013

0.006

22.07

8.2.28

0.011

0.005

18.40

8.2.27

0.010

17.04

8.2.26

0.019

0.000

18.90

8.2.25

0.013

0.006

16.55

8.2.24

0.011

0.007

16.55

8.2.23

0.017

0.003

16.77

8.2.10

0.016

0.006

18.66

8.1.33

0.011

0.008

21.68

8.1.32

0.009

0.005

16.20

8.1.31

0.007

16.79

8.1.30

0.015

0.004

15.94