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<?php $arrayData = new class implements \ArrayAccess { public function offsetExists($offset) { echo "offsetExists\n"; } public function offsetGet($offset) { echo "offsetGet\n"; } public function offsetSet($offset, $value) { } public function offsetUnset($offset) { } }; echo "arrayData - isset:\n"; isset($arrayData['foo']) ? NULL : NULL; echo "arrayData - null coalescing operator:\n"; $arrayData['foo'] ?? NULL; $fixedData = new class extends \SplFixedArray { public function offsetExists($offset) { echo "offsetExists\n"; } public function offsetGet($offset) { echo "offsetGet\n"; } public function offsetSet($offset, $value) { } public function offsetUnset($offset) { } }; echo "fixedData - isset:\n"; isset($fixedData['foo']) ? NULL : NULL; echo "fixedData - null coalescing operator:\n"; $fixedData['foo'] ?? NULL;
Output for 8.1.0 - 8.1.10
Deprecated: Return type of ArrayAccess@anonymous::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 5 Deprecated: Return type of ArrayAccess@anonymous::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 11 Deprecated: Return type of ArrayAccess@anonymous::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 17 Deprecated: Return type of ArrayAccess@anonymous::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 22 arrayData - isset: offsetExists arrayData - null coalescing operator: offsetExists Deprecated: Return type of SplFixedArray@anonymous::offsetExists($offset) should either be compatible with SplFixedArray::offsetExists($index): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 34 Deprecated: Return type of SplFixedArray@anonymous::offsetGet($offset) should either be compatible with SplFixedArray::offsetGet($index): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 40 Deprecated: Return type of SplFixedArray@anonymous::offsetSet($offset, $value) should either be compatible with SplFixedArray::offsetSet($index, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 46 Deprecated: Return type of SplFixedArray@anonymous::offsetUnset($offset) should either be compatible with SplFixedArray::offsetUnset($index): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/BudKa on line 51 fixedData - isset: offsetExists fixedData - null coalescing operator: offsetExists
Output for 7.1.7 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.23
arrayData - isset: offsetExists arrayData - null coalescing operator: offsetExists fixedData - isset: offsetExists fixedData - null coalescing operator: offsetExists
Output for 7.0.6 - 7.0.20, 7.1.0 - 7.1.6
arrayData - isset: offsetExists arrayData - null coalescing operator: offsetExists fixedData - isset: offsetExists fixedData - null coalescing operator: offsetGet
Output for 7.0.0 - 7.0.5
arrayData - isset: offsetExists arrayData - null coalescing operator: offsetGet fixedData - isset: offsetExists fixedData - null coalescing operator: offsetGet
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/BudKa on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CLASS in /in/BudKa on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/BudKa on line 3
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/BudKa on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `'$'' in /in/BudKa on line 3
Process exited with code 255.

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