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run code in 300+ PHP versions simultaneously
<?php class Foo implements \IteratorAggregate, \ArrayAccess, \Countable { private $data = [1,2,3]; public function getIterator() { return new \ArrayIterator($this->data); } public function count() { return count($this->data); } public function offsetExists($offset) { return isset($this->data[$offset]); } public function offsetGet($offset) { return $this->data[$offset]; } public function offsetSet($offset, $value) { $this->data[$offset] = $value; } public function offsetUnset($offset) { unset($this->data[$offset]); } } foreach ((new \ArrayObject(new Foo)) as $key => $value) { var_dump($key, $value); }
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Return type of Foo::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/cIAD5 on line 7 Deprecated: Return type of Foo::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/cIAD5 on line 17 Deprecated: Return type of Foo::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/cIAD5 on line 22 Deprecated: Return type of Foo::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/cIAD5 on line 27 Deprecated: Return type of Foo::offsetUnset($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/cIAD5 on line 32 Deprecated: Return type of Foo::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/cIAD5 on line 12
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 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
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/cIAD5 on line 5
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/cIAD5 on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/cIAD5 on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/cIAD5 on line 3 Parse error: syntax error, unexpected '[' in /in/cIAD5 on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/cIAD5 on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/cIAD5 on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/cIAD5 on line 3 Parse error: parse error, unexpected '[' in /in/cIAD5 on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/cIAD5 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
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/cIAD5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/cIAD5 on line 3
Process exited with code 255.

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