<?php
class A implements JsonSerializable {
public function jsonSerialize() {
return new A;
}
}
echo "AAA\n";
var_dump( json_encode( new A ) );
echo "BBB\n";
Deprecated: Return type of A::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/AtfmY on line 4
AAA
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/AtfmY:5
Stack trace:
#0 [internal function]: A->jsonSerialize()
#1 /in/AtfmY(10): json_encode(Object(A))
#2 {main}
thrown in /in/AtfmY on line 5
Process exited with code 255.
Output for 8.3.0 - 8.3.1
Deprecated: Return type of A::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/AtfmY on line 4
AAA
Fatal error: Uncaught Error: Maximum call stack size of 8306688 bytes reached. Infinite recursion? in /in/AtfmY:5
Stack trace:
#0 [internal function]: A->jsonSerialize()
#1 /in/AtfmY(10): json_encode(Object(A))
#2 {main}
thrown in /in/AtfmY on line 5
Process exited with code 255.
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Deprecated: Return type of A::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/AtfmY on line 4
AAA
Process exited with code 139.