フィボナッチ数列(fabnacci)j再帰
//$allが1の場合fabnacci数列のすべての配列要素function fabnacci($n,$all=1){
}
var_dump(implode("", fabnacci(10)));var_dump(implode("", fabnacci(10)));?>表示string(26)「1 1 2 3 5 8 13 21 34 55 89」string(26)「1 1 2 3 5 8 13 34 55 89」を返します.
static $fabn = [];
if($n < 2){
$fabn[$n] = 1;
}else{
if(empty($fabn[$n])){
$fabn[$n] = fabnacci($n - 1, 0) + fabnacci($n - 2, 0);
}
}
if($all == 1){
return $fabn;
}else{
return $fabn[$n];
} }
var_dump(implode("", fabnacci(10)));var_dump(implode("", fabnacci(10)));?>表示string(26)「1 1 2 3 5 8 13 21 34 55 89」string(26)「1 1 2 3 5 8 13 34 55 89」を返します.