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<?php /** * Provides dependency injection friendly methods for serialization. */ trait DependencySerializationTrait { /** * {@inheritdoc} */ public function __sleep() { echo "hydrating " . $this::class . PHP_EOL; $closure = \Closure::bind(static function ($class) { return get_object_vars($class); }, NULL, $this); $vars = $closure($this); return array_keys($vars); } /** * {@inheritdoc} */ #[\ReturnTypeWillChange] public function __wakeup() { echo "dehydrating " . $this::class . PHP_EOL; } } trait dumper { public function doIt() { print "get_object_vars()\n"; print_r(get_object_vars($this)); $closure = \Closure::bind(static function ($class) { return get_object_vars($class); }, NULL, $this); $vars = $closure($this); print "\n\nClosure\n"; print_r($vars); } } class A { use dumper; use DependencySerializationTrait; private int $a = 1; public function echoA() { echo $this::class . "::" . __METHOD__ . ":" . $this->a . PHP_EOL; } } class B extends A { } class C extends B { use dumper; private int $a = 2; public function scopeCechoA() { echo $this::class . "::" . __METHOD__ . ":" . $this->a . PHP_EOL; } } class D extends B { use DependencySerializationTrait; private int $a = 3; public function scopeDechoA() { echo $this::class . "::" . __METHOD__ . ":" . $this->a . PHP_EOL; } } print "Class A\n"; (new A())->doit(); print "\n\nClass B\n"; $b = new B(); ($b)->doit(); print "\n\nClass C\n"; $c = new C(); ($c)->doit(); print "\n\nClass D\n"; $d = new D(); ($d)->doit(); echo PHP_EOL . PHP_EOL; echo ">>>>>>>>" . PHP_EOL; echo "Before B got serialized/deserialized:" . PHP_EOL; $b->echoA(); $b2 = unserialize(serialize($b)); echo "After B got serialized/deserialized:" . PHP_EOL; $b2->echoA(); echo "<<<<<<<<" . PHP_EOL; echo PHP_EOL . PHP_EOL; echo ">>>>>>>>" . PHP_EOL; echo "Before C got serialized/deserialized:" . PHP_EOL; $c->echoA(); $c->scopeCechoA(); $c2 = unserialize(serialize($c)); echo "After C got serialized/deserialized:" . PHP_EOL; $c2->echoA(); $c2->scopeCechoA(); echo "<<<<<<<<" . PHP_EOL; echo PHP_EOL . PHP_EOL; echo ">>>>>>>>" . PHP_EOL; echo "Before D got serialized/deserialized:" . PHP_EOL; $d->echoA(); $d->scopeDechoA(); $d2 = unserialize(serialize($d)); echo "After D got serialized/deserialized:" . PHP_EOL; $d2->echoA(); $d2->scopeDechoA(); echo "<<<<<<<<" . PHP_EOL;

Version	System time (s)	User time (s)	Memory (MiB)
8.3.12	0.003	0.005	20.50
8.3.11	0.007	0.011	20.94
8.3.10	0.006	0.003	24.06
8.3.9	0.010	0.006	26.77
8.3.8	0.004	0.007	18.18
8.3.7	0.017	0.007	18.06
8.3.6	0.043	0.011	25.92
8.3.5	0.010	0.013	25.92
8.3.4	0.025	0.019	25.92
8.3.3	0.025	0.018	25.92
8.3.2	0.042	0.006	25.92
8.3.1	0.048	0.006	25.92
8.3.0	0.040	0.011	25.92
8.2.24	0.008	0.003	17.55
8.2.23	0.005	0.005	22.58
8.2.22	0.000	0.008	37.54
8.2.21	0.007	0.000	26.77
8.2.20	0.003	0.006	16.75
8.2.19	0.018	0.003	16.63
8.2.18	0.042	0.006	25.92
8.2.17	0.044	0.009	25.92
8.2.16	0.032	0.014	25.92
8.2.15	0.032	0.010	25.92
8.2.14	0.033	0.012	25.92
8.2.13	0.032	0.011	25.92
8.2.12	0.036	0.014	25.92
8.2.11	0.039	0.011	25.92
8.2.10	0.037	0.014	25.92
8.2.9	0.033	0.011	25.92
8.2.8	0.047	0.000	25.92
8.2.7	0.042	0.004	25.92
8.2.6	0.033	0.010	25.92
8.2.5	0.028	0.019	25.92
8.2.4	0.040	0.003	25.92
8.2.3	0.035	0.011	25.92
8.2.2	0.043	0.004	25.92
8.2.1	0.032	0.014	25.92
8.2.0	0.037	0.011	25.92
8.1.30	0.005	0.003	20.19
8.1.29	0.007	0.003	30.84
8.1.28	0.036	0.007	25.92
8.1.27	0.033	0.012	25.92
8.1.26	0.032	0.013	25.92
8.1.25	0.036	0.010	25.92
8.1.24	0.026	0.013	25.92
8.1.23	0.021	0.016	25.92
8.1.22	0.041	0.007	25.92
8.1.21	0.039	0.008	25.92
8.1.20	0.035	0.009	25.92
8.1.19	0.035	0.008	25.92
8.1.18	0.026	0.012	25.92
8.1.17	0.041	0.003	25.92
8.1.16	0.040	0.003	25.92
8.1.15	0.032	0.006	25.92
8.1.14	0.027	0.012	25.92
8.1.13	0.033	0.013	25.92
8.1.12	0.026	0.011	25.92
8.1.11	0.024	0.012	25.92
8.1.10	0.027	0.010	25.92
8.1.9	0.029	0.008	25.92
8.1.8	0.029	0.013	25.92
8.1.7	0.036	0.006	25.92
8.1.6	0.035	0.008	25.92
8.1.5	0.037	0.009	25.92
8.1.4	0.037	0.009	25.92
8.1.3	0.033	0.013	25.92
8.1.2	0.038	0.000	25.92
8.1.1	0.032	0.011	25.92
8.1.0	0.036	0.013	25.92