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<?php class Test implements ArrayAccess { public function __get($k) { return 1; } public function __set($k, $v) { echo "__set($v)\n"; } public function offsetGet($k) { return 1; } public function offsetSet($k, $v) { echo "offsetSet($v)\n"; } public function offsetExists($k) {} public function offsetUnset($k) {} } $t = new Test; echo "Property:\n"; $t[0]++; echo "Offset:\n"; $t->x++;
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of Test::offsetExists($k) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/1ZZsT on line 17 Deprecated: Return type of Test::offsetGet($k) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/1ZZsT on line 11 Deprecated: Return type of Test::offsetSet($k, $v) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/1ZZsT on line 14 Deprecated: Return type of Test::offsetUnset($k) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/1ZZsT on line 18 Property: Notice: Indirect modification of overloaded element of Test has no effect in /in/1ZZsT on line 23 Offset: __set(2)

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