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run code in 300+ PHP versions simultaneously
<?php class ParentClass { protected readonly int $value; } trait Foo { protected readonly int $value; } class ChildClassWithoutTrait extends ParentClass { protected readonly int $value; } $reflector = new ReflectionClass(ChildClassWithoutTrait::class); $instance = $reflector->newInstanceWithoutConstructor(); var_dump( $reflector->hasProperty('value'), $prop = $reflector->getProperty('value') ); $prop->setValue($instance, 20); var_dump($instance); echo '--------------------------------------------------------------------------------------------------------', PHP_EOL; class ClassWithTraitAndNoParent { use Foo; } $reflector = new ReflectionClass(ClassWithTraitAndNoParent::class); $instance = $reflector->newInstanceWithoutConstructor(); var_dump( $reflector->hasProperty('value'), $prop = $reflector->getProperty('value') ); $prop->setValue($instance, 20); var_dump($instance); echo '--------------------------------------------------------------------------------------------------------', PHP_EOL; class ChildClassWithTrait extends ParentClass { use Foo; } $reflector = new ReflectionClass(ChildClassWithTrait::class); $instance = $reflector->newInstanceWithoutConstructor(); var_dump( $reflector->hasProperty('value'), $prop = $reflector->getProperty('value') ); $prop->setValue($instance, 20); var_dump($instance);
Output for 8.5.0
bool(true) object(ReflectionProperty)#3 (2) { ["name"]=> string(5) "value" ["class"]=> string(22) "ChildClassWithoutTrait" } object(ChildClassWithoutTrait)#2 (1) { ["value":protected]=> int(20) } -------------------------------------------------------------------------------------------------------- bool(true) object(ReflectionProperty)#2 (2) { ["name"]=> string(5) "value" ["class"]=> string(25) "ClassWithTraitAndNoParent" } object(ClassWithTraitAndNoParent)#1 (1) { ["value":protected]=> int(20) } -------------------------------------------------------------------------------------------------------- bool(true) object(ReflectionProperty)#1 (2) { ["name"]=> string(5) "value" ["class"]=> string(19) "ChildClassWithTrait" } object(ChildClassWithTrait)#4 (1) { ["value":protected]=> int(20) }
Output for 8.4.1 - 8.4.15
bool(true) object(ReflectionProperty)#3 (2) { ["name"]=> string(5) "value" ["class"]=> string(22) "ChildClassWithoutTrait" } object(ChildClassWithoutTrait)#2 (1) { ["value":protected]=> int(20) } -------------------------------------------------------------------------------------------------------- bool(true) object(ReflectionProperty)#2 (2) { ["name"]=> string(5) "value" ["class"]=> string(25) "ClassWithTraitAndNoParent" } object(ClassWithTraitAndNoParent)#1 (1) { ["value":protected]=> int(20) } -------------------------------------------------------------------------------------------------------- bool(true) object(ReflectionProperty)#1 (2) { ["name"]=> string(5) "value" ["class"]=> string(11) "ParentClass" } object(ChildClassWithTrait)#4 (1) { ["value":protected]=> int(20) }
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28
bool(true) object(ReflectionProperty)#3 (2) { ["name"]=> string(5) "value" ["class"]=> string(22) "ChildClassWithoutTrait" } object(ChildClassWithoutTrait)#2 (1) { ["value":protected]=> int(20) } -------------------------------------------------------------------------------------------------------- bool(true) object(ReflectionProperty)#2 (2) { ["name"]=> string(5) "value" ["class"]=> string(25) "ClassWithTraitAndNoParent" } object(ClassWithTraitAndNoParent)#1 (1) { ["value":protected]=> int(20) } -------------------------------------------------------------------------------------------------------- bool(true) object(ReflectionProperty)#1 (2) { ["name"]=> string(5) "value" ["class"]=> string(11) "ParentClass" } Fatal error: Uncaught Error: Cannot initialize readonly property ParentClass::$value from scope ChildClassWithTrait in /in/Zbnqa:64 Stack trace: #0 /in/Zbnqa(64): ReflectionProperty->setValue(Object(ChildClassWithTrait), 20) #1 {main} thrown in /in/Zbnqa on line 64
Process exited with code 255.
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