Not using arrays more than once...

[Wes1890]

Im back...

I'm needing help on a script that picks 8 people and pairs them up... but not to pair up the same pair until all people have been mixed to their max...

example

people:
a
b
c
d
e
f
g
h

(8 people with short names) (in an array)

i want it to mix up the 8 like this:

a - d
b - e
g - h
f - c

each person have 7 other people to pair up with... which makes it 64 total mix ups (i think i figured that right... lol 8*8.. it might be 7*7=49 anywyas)

so until each person is matched up with each of the other 7 people i don't want them to be paired up with someone they have been already paired up with.... get me?

any help will be awesome... thanks

[trq]

Very ugly but works....

[code=php:0]
#!/usr/bin/php
<?php

    function ugly_random_pairing($array) {

        while (count($arr) > 0) {
            $akey = array_rand($arr);
            $aval = $arr[$akey];
            unset($arr[$akey]);
            $bkey = array_rand($arr);
            $bval = $arr[$bkey];
            unset($arr[$bkey]);

            $keys[] = $aval;
            $vals[] = $bval;

        }     

        return array_combine($keys,$vals);

    }

    $arr = array('a','b','c','d','e','f','g','h');
    print_r(ugly_random_pairing($arr);

?>
[/code]

[Wes1890]

it returns

"Array"


thats it... ?

[Jeremysr]

Maybe something like this?

[code]
<?php
$people = array('a','b','c','d','e','f','g','h');

for ($x = 0; $x < 8; $x++) {
    for ($y = 0; $y < 8; $y++) {
          if ($x != $y) { echo ("$people[$x] $people[$y]<br />"); }
    }
}

?>
[/code]

[trq]

[quote]
it returns

"Array"


thats it... ?
[/quote]

Not here it does'nt. Show me how your using it.