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Posted By

Scooter on 07/12/08


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math


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jdstraughan
mothore


Fibonacci numbers

Published in: PHP 

URL: http://reusablecode.blogspot.com/2008/07/fibonacci-numbers.html

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  1. <?php
  2.     /*
  3.     Copyright (c) 2008, reusablecode.blogspot.com; some rights reserved.
  4.     
  5.     This work is licensed under the Creative Commons Attribution License. To view
  6.     a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or
  7.     send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California
  8.     94305, USA.
  9.     */
  10.  
  11.     // Get Fibonacci number
  12.     function fib($x)
  13.     {
  14.         $fibArray[0] = 0;
  15.         $fibArray[1] = 1;
  16.  
  17.         for($i = 2; $i <= $x; $i++)
  18.         {
  19.             $fibArray[$i] = $fibArray[$i - 1] + $fibArray[$i - 2];
  20.         }
  21.  
  22.         return $fibArray[$x];
  23.     }
  24. ?>

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