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run code in 200+ php & hhvm versions
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<?php function floatMod($num, $div) { return $num - floor($num / $div) * (int) $div; } echo fmod(50.5, 60);
based on JrSj5
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.1.0 - 7.3.0beta1
50.5