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run code in 300+ PHP versions simultaneously
<?php class Bar { public function doFoo(string $s = null, string ...$j, $k = null) { } }
Output for 7.2.0 - 7.2.31, 7.3.0 - 7.3.18, 7.4.0 - 7.4.6
Fatal error: Only the last parameter can be variadic in /in/2WdeE on line 6
Process exited with code 255.

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