PHP to achieve the number of daffodils sample sharing

This article mainly introduces the implementation of the number of daffodils in PHP example, the need for friends can refer to the

Since the power number, also known as the number of Armstrong, folk called Narcissus number. In fact, only 3-digit self power number is the number of Narcissus flowers. 4-bit 5-bit 6-bit, and so on, each has another name. The code is as follows: <?php//Armstrong number: A K-digit, the sum of the K-power of the number on each bit of it is equal to itself. (For example: 1^3 + 5^3 + 3^3 = 153) class Armstrong {static function index () {for ($i = $i < 100000; $i + +) {Ech o Self::is_armstrong ($i)? $i.   ' <br> ': ';   } static function Is_armstrong ($num) {$s = 0;   $k = strlen ($num);   $d = Str_split ($num);   foreach ($d as $r) {$s + + = Bcpow ($r, $k);  return $num = = $s; } armstrong::index ();