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<?php function getColor($number) { $color = array("black", "lightblue", "gray", "green", "pink", "blueviolet", "red", "blue", "lightgreen", "brown"); if ($number == 100) { return $color[9]; } else if ($number == 0) { return $color[0]; } else if ($number % 10 == 0) { print(3); $value = $number / 10; return $color[floor($value--)]; } else { $value = $number / 10; return $color[floor($value)]; } } print(getColor(30));