3v4l.org

run code in 150+ php & hhvm versions
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<?php $c=35; $e=-ceil(log10($c)); $m=pow(10,$e); $r=$c*$m; echo($e."\n"); echo($m.' BTC = '.$r.' LTC'); ?>
Output for 4.3.0 - 7.1.0
-2 0.01 BTC = 0.35 LTC