Thanks. This one actually works -
<?php
$list = array('david', 'dianne', 'phyllis', 'phillip') ;
sort($list);
echo '<br><br>Unique Pairs:';
for($i = 0; $i < sizeof($list) ; $i++) {
if($i > 0 && ($list[$i] == $list[$i-1]) ) {
continue;
}
for($j = $i+1; $j < sizeof($list) ; $j++) {
if($list[$i] == $list[$j]) {
continue;
}
if($list[$j] == $list[$j-1]) {
continue;
}
echo '<br>' . $list[$i] . ' / ' . $list[$j];
}
}
?>
Bob <[EMAIL PROTECTED]> wrote: Hi David,
----- Original Message -----
From: "David Gresser"
> Thanks. I would like to get it so that duplicates like david - dianne and
> dianne - david were elminated so for say a list of three names:
>
> david
> dianne
> phillip
>
> I would only end up with 3 pairs
>
> david dianne
> david phillip
> dianne phillip
Not sure if this is what you need?
It will select 6 unique names, so you could maybe modify it to suit.
I used this in something similar.
<?php
$names = array("bob", "david", "dianne", "harry", "john", "harry", "henry",
"mary", "phillip", "phyllis");
$total = 6;
// Create array to store results
$results = array();
// Keep looping until 6 unique names found
while (count($results) < $total)
{
$results[] = $names[array_rand($names)];
$results = array_unique($results);
}
// Must loop though array as it may have holes
foreach ($results as $item)
{
echo ucfirst($item) . " ";
}
// Show array with holes
echo '<br /><br />';
print_r($results);
?>
You can't refer to names as $results[2] though, as you'll see if you run it.
Not sure how to get rid of the array holes, as it didn't matter when I used it.
Maybe someone else can comment?
I gleaned all this from the downloadable manual, which is excellent, but
haven't tried all the array functions yet.
Regards, Bob Exton.
[Non-text portions of this message have been removed]
