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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 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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) }
Output for 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
int(0) int(23) object(X)#1 (1) { ["x"]=> int(43) }
Output for 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.3
Fatal error: Declaration of X::offsetGet() must be compatible with that of ArrayAccess::offsetGet() in /in/H2Fc3 on line 2
Process exited with code 255.
Output for 5.1.0 - 5.1.2
Strict Standards: var: Deprecated. Please use the public/private/protected modifiers in /in/H2Fc3 on line 3 Fatal error: Declaration of X::offsetGet() must be compatible with that of ArrayAccess::offsetGet() in /in/H2Fc3 on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Strict Standards: var: Deprecated. Please use the public/private/protected modifiers in /in/H2Fc3 on line 3 int(0) int(23) object(X)#1 (1) { ["x"]=> &int(43) }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/H2Fc3 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/H2Fc3 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/H2Fc3 on line 2
Process exited with code 255.

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