[RESOLVED] Random Pair

[udolipixie]

How do I randomly print out 24 pairs of 2 values that are next in an array consisting of 96 values?

I was able to edit the following code from this
old phpbuilderpost. But I only prints out one row and I need 24 random rows in pairs.

$array = array('eggs', 'bacon', 'football', 'baseball', 'ford', 'toyota'); 

$rand_index = mt_rand(0, count($array) / 2 - 1) * 2; 

echo $array[$rand_index] . " " . $array[$rand_index + 1]; 

The output is either
eggs bacon
football baseball
ford toyota

If I try to add another

echo $array[$rand_index] . " " . $array[$rand_index + 1]; 

I get the same pair instead of a different one.

[bradgrafelman]

udolipixie;10969413 wrote:

If I try to add another

echo $array[$rand_index] . " " . $array[$rand_index + 1]; 

I get the same pair instead of a different one.

Did you compute a new value for $rand_index?

[udolipixie]

So if I want two random pairs the script should be

<?php
$array = array('eggs', 'bacon', 'football', 'baseball', 'ford', 'toyota', 'cat', 'dog', 'hello', 'goodbye', 'cute', 'kawaii');

$rand_index = rand(0, count($array) / 2 - 1) * 2;

echo $array[$rand_index] . " " . $array[$rand_index + 1];

$rand_index2 = mt_rand(0, count($array) / 2 - 1) * 2;

echo $array[$rand_index2] . " " . $array[$rand_index2 + 1];
?>

[bradgrafelman]

Aye, or you could be more efficient and use a for() loop to repeat those two lines of code to generate however many number of random pairs you'd like.