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run code in 300+ PHP versions simultaneously
<?php $contents = new RecursiveCallbackFilterIterator( new RecursiveDirectoryIterator(__DIR__), function ($current, $key, $iterator): bool { return true; }, ); while ($contents->valid()) { echo $contents->getSubPathName() . "\n"; $contents->next(); }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1

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50.86 ms | 406 KiB | 5 Q