Fibonacci

[ZduneX25]

10284683057613717413913
ufff

[keaglez]

16640966750620563662096

trying to create fibonacci program in php

Code:

function fibonacci($total)
{
	for ($a = 2, $b = 0, $c = 1; $a < $total; $a++)
	{
		$en = $b + $c;
		$b = $c;
		$c = $en;
	}
	return $en;
}

but no, it can't count more than the 69th fibonacci number... :'(

[PackPunk]

26925649808234281076009, still using Gate's calc :p

[ZduneX25]

43566616558854844738105 he

[PackPunk]

70492266367089125814114

[ZduneX25]

114058882925943970552219 

[PackPunk]

184551149293033096366333

[Exploited]

keaglez - you need "big int" libraries. It's very easy to do it in MySQL (there is BIGINT type of 22 digits)

The next number is:
298610032218977066918552

[keaglez]

483161181512010163284885

I see, I will look it...

Hmm... this one works better, using sprintf to convert float to string

Code:

function fibonacci($total)
{
	for ($a = 2, $b = 0, $c = 1; $a < $total; $a++)
	{
		$en = $b + $c;
		$b = $c;
		$c = $en;
	}
	return sprintf("%.0f", $en);
}

but well, the 80th numbers started to count wrong...

[ZduneX25]

781771213730987230203437

[PackPunk]

1264932395242997393488322

[ZduneX25]

=
2046703608973984623691759

[PackPunk]

3311636004216982017180081

[ZduneX25]

5358339613190966640871840

[PackPunk]

8669975617407948658051921