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<?php class A implements ArrayAccess { function offsetGet($a){ throw new Error; } function offsetExists($a){ echo "noooooooooo"; return false; } function offsetSet($a, $b){} function offsetUnset($a){} } $x = new A; var_dump($x[10] ?? 20); var_dump($f ?? 20);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: Return type of A::offsetExists($a) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/SbMuT on line 9 Deprecated: Return type of A::offsetGet($a) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/SbMuT on line 5 Deprecated: Return type of A::offsetSet($a, $b) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/SbMuT on line 14 Deprecated: Return type of A::offsetUnset($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/SbMuT on line 15 nooooooooooint(20) int(20)
Output for 7.0.6 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
nooooooooooint(20) int(20)
Output for 7.0.0 - 7.0.5
Fatal error: Uncaught Error in /in/SbMuT:6 Stack trace: #0 /in/SbMuT(23): A->offsetGet(10) #1 {main} thrown in /in/SbMuT on line 6
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '?' in /in/SbMuT on line 23
Process exited with code 255.

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