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<?php class O implements ArrayAccess { public function offsetSet($key, $value) { $this->data[$key] = $value; } public function offsetExists($key) { return isset($this->data[$key]); } public function offsetUnset($key) { unset($this->data[$key]); } public function offsetGet($key) { return $this->data[$key]; } } $o = new O; $o['foo'] = 'bar'; var_dump(array_key_exists('foo', $o)); var_dump(array_key_exists('bar', $o)); $a = array(); $a['foo'] = 'bar'; var_dump(array_key_exists('foo', $a)); var_dump(array_key_exists('bar', $a));
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of O::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 4 Deprecated: Return type of O::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 6 Deprecated: Return type of O::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 3 Deprecated: Return type of O::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 5 Deprecated: Creation of dynamic property O::$data is deprecated in /in/WuPaO on line 3 Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, O given in /in/WuPaO:11 Stack trace: #0 {main} thrown in /in/WuPaO on line 11
Process exited with code 255.
Output for 8.1.0 - 8.1.28
Deprecated: Return type of O::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 4 Deprecated: Return type of O::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 6 Deprecated: Return type of O::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 3 Deprecated: Return type of O::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/WuPaO on line 5 Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, O given in /in/WuPaO:11 Stack trace: #0 {main} thrown in /in/WuPaO on line 11
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, O given in /in/WuPaO:11 Stack trace: #0 {main} thrown in /in/WuPaO on line 11
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in /in/WuPaO on line 11 bool(false) Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in /in/WuPaO on line 12 bool(false) bool(true) bool(false)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
bool(false) bool(false) bool(true) bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/WuPaO on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/WuPaO on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/WuPaO on line 2
Process exited with code 255.
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