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  1. <?php
  2.  
  3. $sequence = array();
  4.  
  5. for ($i = 0; $i <= 100 ; $i++) { 
  6.     if ( $i < 2 ) {
  7.         $sequence[$i] = $i;         
  8.     } else{
  9.         $sequence[$i] = $sequence[$i - 1] + $sequence[$i - 2];          
  10.     }       
  11. }
  12.  
  13.  
  14. function fibonacci($n){
  15.     global $sequence;
  16.     echo $sequence[$n];
  17.  
  18. };
  19.  
  20. fibonacci(100);
Success #stdin #stdout 0.02s 52472KB
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3.5422484817926E+20
https://ideone.com/hf4RKQ
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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