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run code in 500+ PHP versions simultaneously
<?php class HistoryBlob {} class ConcatenatedGzipHistoryBlob extends HistoryBlob { var $mVersion = 0, $mCompressed = false, $mItems = array(), $mDefaultHash = ''; } $blob = new ConcatenatedGzipHistoryBlob(); $blob->mItems[] = 'foo'; print serialize($blob);

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74.17 ms | 2749 KiB | 5 Q