Re: Predictable-random array

On 6/20/05, Marek Kilimajer <lists@kilimajer.net> wrote: > Dotan Cohen wrote: > > I've got an array $items which has about 200 entires. I want to print > > them out in random order, but as usual, I have a catch! I need to add > > a 'key' so that if need be, I can always return to the same 'random' > > order, like so: > > > > $items=predicatable_random($items, "qwerty"); > > > > so for each place that I need the items rearranged, I will replace > > qwerty with a different string, and get a different 'random' order. I > > haven't played around with it much as I stumbled into a brick wall > > fairly early and can't get much going. Any ideas? > > > > I tried to play with usort, uksort, ksort, and various combinations > > with shuffle. The 'randomization' can be based on qualities of each > > string, such as 'sort alphebetically by the 7th character', so I > > thought that I'd try that, but I got lost in explodes and such. > > Seed the generator with some integer using srand(): > > srand(384884); > $a = range(0, 100); > shuffle($a); > print_r($a); > Thanks! That's exactly the simple solution I was looking for. With the current versions of php not needing a seed, I didn't even think to do that! I also recieved many other suggestions, and I will look into them. All in the name of learning. Thank you. Dotan http://english-lyrics.com/el/index.php English Song Lyrics