How to display random links?

Can someone please give me the quick snippet of code that I need to display random links? I just want to enter about 25 links, and have it randomly pick 3 each time.

 

This should work :

$rand = rand(1,3);

switch ($rand) {
case 1:
   echo "<a href='http://www.link1.com'>link1</a>";
   break;
case 2:
   echo "<a href='http://www.link2.com'>link2</a>";
   break;
case 3:
   echo "<a href='http://www.link2.com'>link2</a>";
   break;
}

PHP:

 

My preference would be to store the links in an array and then use count to automatically get the top number for the top number in the rand function.

$links = array(0 => "<a href='http://www.link0.com'>link0</a>",
                   1 => "<a href='http://www.link1.com'>link1</a>",
                   2 => "<a href='http://www.link2.com'>link2</a>");

$rand_num = rand(0, (count($links) - 1));

echo $links[$rand_num];

PHP:

This way there is less to do if you want to add new links and it is really easy to put all the links in a separate file if you wish.

 

Thanks guys

 

$links = array
(
	"<a href=\"http://google.com\">Google</a>",
	"<a href=\"http://msn.com\">MSN</a>",
	"<a href=\"http://porn.com\">Porn</a>",
	"<a href=\"http://space.com\">Space</a>",
	"<a href=\"http://more.com\">More</a>",
	"<a href=\"http://less.com\">Less</a>"
);

function rand_links( $links, $num, $glue = "<br />" )
{
	if(!is_array( $links ) ) 
		return false;
		
	foreach( array_rand( $links, $num ) as $selected ) 
		$return .= $links[ $selected ] . $glue;	
		
	return trim( substr( $return, 0, strlen( $return ) - strlen( $glue ) ) );
}

echo rand_links( $links, 3 );

echo "<br /><br /><hr />";

echo rand_links( $links, 3, " | " );

PHP:

 

I haven't come across the array_rand function before. It certainly simplifies things.

The whole variable number thing, which I seem to have skipped, also addresses the question in full.