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run code in 300+ PHP versions simultaneously
<?php class MyFilter extends FilterIterator implements Countable { public function accept() { return true; } public function count() { return $this->getInnerIterator()->count(); } } $it = new ArrayIterator(array(1, 2, 3)); $fi = new MyFilter($it); var_dump($it->count()); var_dump($fi->count()); var_dump(count($it)); var_dump(count($fi));
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Deprecated: Return type of MyFilter::accept() should either be compatible with FilterIterator::accept(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/gfZrT on line 5 Deprecated: Return type of MyFilter::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/gfZrT on line 10 int(3) int(3) int(3) int(3)
Output for 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 - 5.6.40, 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
int(3) int(3) int(3) int(3)
Output for 5.0.5
Fatal error: Interface 'Countable' not found in /in/gfZrT on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Countable' not found in /in/gfZrT on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/gfZrT 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/gfZrT on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/gfZrT on line 3
Process exited with code 255.
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