3v4l.org

run code in 300+ PHP versions simultaneously
<?php $step = 5; $usernumber = 188; $myseries = range(0, 59, $step); $myseries = range(0, 59, 5); $check = round($usernumber/$step) * $step; echo "<br>".$check; if(in_array($check,$myseries)) echo "\n".$check; else echo max($myseries);

preferences:
38.95 ms | 402 KiB | 5 Q