How to randomly pick from a list in php?

Say I have something like this,

if ($m == "1") {$link = "http://www.test.com;}
header("Location: $link");
exit();

Code (markup):

How would I change this so it would randomly pick from a list of say 50 sites?

 

http://www.php.net/array_rand

 

what you want to use is the rand() function

Something like

$urls = array('url1', 'url2', 'url3');

$getrand =  rand(0, count($urls) -1);

header("location: $urls[$getrand]");

Code (markup):

This is untested, but should do what you want

 

Using the above, here is some working code.

<?php
$urls = array('<a href="http://www.yahoo.com">yahoo</a>', 
'<a href="http://www.google.com">google</a>', 
'<a href="http://www.altavista.com">altavista</a>', 
'<a href="http://nextebizguy.com">nextebizguy</a>' );

$getrand =  rand(0, count($urls) -1);

echo "Random Link: $urls[$getrand]";
?>

Code (markup):

Put this into an html file and run it on your server.