Get items from a list and display them in random order

is there an easy way to have a list of 50 items (one per line) and to include them into a section of a webpage (as php include) listed in a different random order each time?

I would also like to know if I can limit the output to maybe the first random 20 items.

 

$items = explode("\n", $i_dont_know_where_the_items_are);
$keys = array_rand($items, 20);
foreach ($keys as $key) {
    echo $items[$key];
}

PHP:

I think

 

Thank you but wouldn't there be some statement where I would identify the file containing the list?
ie: $listfile = "listfile.txt"

 

<?php
/**
 * @author Interviolet
 * @package [$package]
 * @filename [$filename]
 * @copyright 2007
 */
function random_list_from_file( $filename, $limit = null )
{
	if( ( $array = file( $filename ) ) )
	{
		$array = array_map( 'format_list', $array );
		
		shuffle( $array );
		
		return $limit ? current( array_chunk( $array, $limit ) ) : $array ;
	}
}
/**
* Callback to format each line of list with html tags, edit as appropriate
**/
function format_list( $list, $start = "<p>", $end = "</p>" )
{
	return sprintf( "%s%s%s", $start, trim( $list ), $end );
}

echo implode("\n", random_list_from_file( "test.txt", 20 ) );
?>

PHP:

leave out the limit parameter to return the whole array ....

 

$listfile = file("listfile.txt");

PHP:

Edit: I opened this page a while back and just replied. A little late I guess.