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run code in 500+ PHP versions simultaneously
<?php class My_DOMDocument extends DOMDocument { public function saveHTML(DOMNode $node = NULL) { parent::saveHTML($node); } } echo 'no problem here';
Output for 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Deprecated: My_DOMDocument::saveHTML(): Implicitly marking parameter $node as nullable is deprecated, the explicit nullable type must be used instead in /in/u0Kvn on line 5 Deprecated: Return type of My_DOMDocument::saveHTML(?DOMNode $node = null) should either be compatible with DOMDocument::saveHTML(?DOMNode $node = null): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/u0Kvn on line 5 no problem here
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30
Deprecated: Return type of My_DOMDocument::saveHTML(?DOMNode $node = null) should either be compatible with DOMDocument::saveHTML(?DOMNode $node = null): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/u0Kvn on line 5 no problem here
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
no problem here
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73.65 ms | 1514 KiB | 4 Q