Re: [PHP] shuffle or mt_rand

2007-07-02 Thread Richard Lynch
On Fri, June 29, 2007 4:57 am, Ryan A wrote: > Have a quick question about which is better to get real random values, > shuffle or mt_rand. I *thought* that shuffle used mt_rand under the hood, but could be totally wrong... As far as REAL random values goes, that's an encyclopedia of information,

Re: [PHP] shuffle or mt_rand

2007-06-29 Thread Tijnema
On 6/29/07, Ryan A <[EMAIL PROTECTED]> wrote: Just did a quick benchmark for 10.000 hands (making a full deck on your code, 23.5 players): Microtime difference: Ryan's code:15.725826978683 Tijnema's code:0.40006709098816 Unique decks out of 1: Ryan's code:1 Tijnema's code:1 When mak

Re: [PHP] shuffle or mt_rand

2007-06-29 Thread Ryan A
Just did a quick benchmark for 10.000 hands (making a full deck on your code, 23.5 players): Microtime difference: Ryan's code:15.725826978683 Tijnema's code:0.40006709098816 Unique decks out of 1: Ryan's code:1 Tijnema's code:1 When making a full deck my code is 40 times faster, and

Re: [PHP] shuffle or mt_rand

2007-06-29 Thread Fredrik Thunberg
Just did a quick benchmark for 10.000 hands (making a full deck on your code, 23.5 players): Microtime difference: Ryan's code:15.725826978683 Tijnema's code:0.40006709098816 Unique decks out of 1: Ryan's code:1 Tijnema's code:1 When making a full deck my code is 40 times faster

Re: [PHP] shuffle or mt_rand

2007-06-29 Thread Tijnema
On 6/29/07, Ryan A <[EMAIL PROTECTED]> wrote: Hey, Have a quick question about which is better to get real random values, shuffle or mt_rand. I am trying to shuffle a deck of cards and reading another thread I saw that after a couple of thousand random generations patterns have been observed

Re: [PHP] shuffle or mt_rand

2007-06-29 Thread Richard Heyes
Ryan A wrote: Hey, Have a quick question about which is better to get real random values, shuffle or mt_rand. I am trying to shuffle a deck of cards and reading another thread I saw that after a > couple of thousand random generations patterns have been observed > using rand()... so its bett

[PHP] shuffle or mt_rand

2007-06-29 Thread Ryan A
Hey, Have a quick question about which is better to get real random values, shuffle or mt_rand. I am trying to shuffle a deck of cards and reading another thread I saw that after a couple of thousand random generations patterns have been observed using rand()... so its better to use mt_rand().