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- function fibonacci($input = 10)
- {
- // reset variable
- $prev = 0; $next = 1; $result= '';
- //looping sesuai input
- for($i = 0; $i < $input; $i++)
- {
- //jika pd posisi $i = 0 maka return nilai $prev = 0
- if($i == 0)
- $helper = $prev;
- else
- $helper = $prev + $next; // tambahkan nilai kemarin dgn barusan dan simpan dlm $helper
- //tampung output dlm $result
- $result .= "{$helper} ";
- $prev = $next; //pindahkan nilai $next ke variable $prev
- $next = $helper; // pindahkan nilai $helper ke variable $next
- }
- return $result; //output semua
- }
- echo fibonacci();
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