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<?php class C implements JsonSerializable { var $a = 'lol'; var $b = 'fa'; public function jsonSerialize() { $aux = clone($this); unset($aux->a); return $aux; } } echo json_encode(new C());
Output for 8.5.0
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7 Fatal error: Uncaught Error: Maximum call stack size of 8335360 bytes (zend.max_allowed_stack_size - zend.reserved_stack_size) reached. Infinite recursion? in /in/TSgMV:8 Stack trace: #0 [internal function]: C->jsonSerialize() #1 /in/TSgMV(13): json_encode(Object(C)) #2 {main} thrown in /in/TSgMV on line 8
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.3.2 - 8.3.27, 8.4.1 - 8.4.14
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7 Fatal error: Uncaught Error: Maximum call stack size of 8306688 bytes (zend.max_allowed_stack_size - zend.reserved_stack_size) reached. Infinite recursion? in /in/TSgMV:8 Stack trace: #0 [internal function]: C->jsonSerialize() #1 /in/TSgMV(13): json_encode(Object(C)) #2 {main} thrown in /in/TSgMV on line 8
Process exited with code 255.
Output for 8.3.28
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7 Fatal error: Uncaught Error: Maximum call stack size of 8339456 bytes (zend.max_allowed_stack_size - zend.reserved_stack_size) reached. Infinite recursion? in /in/TSgMV:8 Stack trace: #0 [internal function]: C->jsonSerialize() #1 /in/TSgMV(13): json_encode(Object(C)) #2 {main} thrown in /in/TSgMV on line 8
Process exited with code 255.
Output for 8.3.0 - 8.3.1
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7 Fatal error: Uncaught Error: Maximum call stack size of 8306688 bytes reached. Infinite recursion? in /in/TSgMV:8 Stack trace: #0 [internal function]: C->jsonSerialize() #1 /in/TSgMV(13): json_encode(Object(C)) #2 {main} thrown in /in/TSgMV on line 8
Process exited with code 255.
Output for 8.1.0 - 8.1.1, 8.1.28 - 8.1.33, 8.2.18 - 8.2.29
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7
Process exited with code 139.
Output for 8.2.0 - 8.2.17
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7 Fatal error: Out of memory (allocated 25165824 bytes) (tried to allocate 20480 bytes) in /in/TSgMV on line 8 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.1.2 - 8.1.27
Deprecated: Return type of C::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/TSgMV on line 7 Fatal error: Out of memory (allocated 25165824) (tried to allocate 20480 bytes) in /in/TSgMV on line 8 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30

Process exited with code 139.
Output for 5.3.0 - 5.3.29
Fatal error: Interface 'JsonSerializable' not found in /in/TSgMV on line 4
Process exited with code 255.

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