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<?php class A implements ArrayAccess { function offsetGet($a){ return new A; } function offsetExists($a){ echo "exists"; if($a === 10){ return true; }else{ return false; } } function offsetSet($a, $b){} function offsetUnset($a){} } $x = new A; var_dump($x[10][20] ?? 20);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of A::offsetExists($a) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/fU7LA on line 9 Deprecated: Return type of A::offsetGet($a) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/fU7LA on line 5 Deprecated: Return type of A::offsetSet($a, $b) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/fU7LA on line 18 Deprecated: Return type of A::offsetUnset($a) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/fU7LA on line 19 existsexistsint(20)

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