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<?php class X implements ArrayAccess { var $x = 42; function &offsetGet($n) { var_dump(0,$n); return $this->x;} function offsetSet($x, $z) { var_dump($x, $z); var_dump(1, $this->x); } function offsetExists($n) {} function offsetUnset($n) {} } $x = new X(); $x[23]++; var_dump($x);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of X::offsetExists($n) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/H2Fc3 on line 6 Deprecated: Return type of & X::offsetGet($n) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/H2Fc3 on line 4 Deprecated: Return type of X::offsetSet($x, $z) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/H2Fc3 on line 5 Deprecated: Return type of X::offsetUnset($n) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/H2Fc3 on line 7 int(0) int(23) object(X)#1 (1) { ["x"]=> int(43) }

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