<?php function getCat($val) { $cat = ''; if ($val >= 81) { $cat = 'A'; } else if ($val >= 71 && $val <= 80) { $cat = 'AB'; } else if ($val >= 51 && $val <= 70) { $cat = 'B'; } else { $cat = $val < 40 ? 'C' : 'BC'; } return $cat; } echo getCat(90) . PHP_EOL; echo getCat(72) . PHP_EOL; echo getCat(55) . PHP_EOL; echo getCat(45) . PHP_EOL; echo getCat(10) . PHP_EOL;
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