case 'nth':
$nthPrime = $num->getNthPrime();
$enders = array('th', 'st', 'nd', 'rd', 'th', 'th', 'th', 'th', 'th', 'th');
if ($num->getValue() % 100 >= 11 && $num->getValue() % 100 <= 13) {
$abbreviation = 'th';
} else {
$abbreviation = $enders[$num->getValue() % 10];
}
echo "The " . $num->getValue() . $abbreviation . " prime number is " . $nthPrime;
break;
case 'allPrimes':
if ($num->getPrimesBelowN()) {
$handle = fopen('sieveResults.txt', 'r') or die("Couldn't do it captain!");
if ($handle) {
while (!feof($handle)) {
$buffer = fgets($handle, 4096);
echo $buffer;
}
}
fclose($handle);
}
break;
case 'isPrime':
echo $num->isPrime();
break;
default:
echo "Nothing to do";
break;
}
}
}
