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run code in 500+ PHP versions simultaneously
<?php while(($arr=isset($arr)?$arr:[0=>"1"]) && ($i=count($arr)) && $arr[] = $i && $i<=100){ printf("%s\n",sprintf("%s%s",($i%3?null:"fizz"),($i%5?null:"buzz"))?:$i); }

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98.96 ms | 1366 KiB | 5 Q