4 examples of how to implement the number of daffodils in PHP_PHP tutorial

Example 1:

Copy code The code is as follows:

for($q= 1;$q<=9;$q++){
for($w=0;$w<=9;$w++){
for($e=0;$e<=9;$e++ ){
if($q*$q*$q + $w*$w*$w + $e*$e*$e ==
100*$q + 10*$w + $e ){
              echo "$q $w $e "."

";

Example 2:

Copy code

The code is as follows:

function cube( $n ){ return $n * $n * $n;}

function is_narcissistic ( $n )
{
$hundreds = floor( $n / 100); // Decompose Hundreds place
$tens = floor( $n / 10 ) % 10; // Decompose the tens place
$ones = floor( $n % 10 ); // Decompose the ones place
return (bool )(cube($hundreds)+cube($tens)+cube($ones) == $n);
}


for ( $i = 100; $i < 1000 ; ++ $i )
{
if ( is_narcissistic($i) )
echo $i."n";
}
?>



Example 3:



Copy code

The code is as follows:

//Armstrong number: A k-digit number, the sum of the k-th powers of the digits in each digit is equal to itself. (For example: 1^3 + 5^3 + 3^3 = 153) class Armstrong { static function index(){ for ( $i = 100; $i < 100000; $i++ ) {

echo self::is_armstrong($i) ? $i . '
' : '';

}
}
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();



Example 4:

Copy code

The code is as follows:

function winter($num)
{
if($num<1000){
//Define the ones place
$ge=$num%10;
//Define ten Digits
$ten=(($num%100)-$ge) /10;
//Define hundreds place
/*floor rounding, ignoring all numbers after the decimal point*/
$ hundred=floor($num/100);
$sum1=$ge*$ge*$ge+$ten*$ten*$ten+$hundred*$hundred*$hundred;
if($sum1== $ Num) { Return 1;
} Else {
Return 0;
}

           } else{

                                          return -1;                                                                                        
if(winter(371)==-1) {
echo "A number greater than 1000";
if(winter(371)) {

echo "Yes" ;

                                                                                                                                                                                                    ;
?>

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TechArticle

Example 1: Copy the code as follows: ?php for($q=1;$q=9;$q++ ){ for($w=0;$w=9;$w++){ for($e=0;$e=9;$e++){ if($q*$q*$q + $w*$w *$w + $e*$e*$e == 100*$q + 10*$w + $e){ echo "$q $w $e...