Support/Comments for RandomQuotes

<?php
// RandomQuote
// Snippet to produce by sottwell.
// Posted by web_designer.
// Dated 25th Sepember 2006.

$resourceparent = $quoteid;  // the folder that contains quote documents
$output = '';  // initialise the quote variable
$resource = $modx->getActiveChildren($resourceparent,'createdon', 'DESC', $fields='content');
$limit=count($resource);
if($limit<1) {
   $output .= "No entries found.<br />";
   return $output;
}
$random = (rand(1, $limit) - 1);
$output .= $resource[$random]['content']; // get a random quote
return $output;
?>

<div id="head2">
     <div class="head2left">
     </div>
     <div class="head2right">
<h2>Welcome to</h2>
<h3><a href="[~[(site_start)]~]">[(site_name)]</a></h3>
<p>
[[!ClientQuote?quoteid=`5`!]]
</p>
     </div>
</div>

[!ClientQuote? &quoteid=123!]

[[!ClientQuote?quoteid=`5`!]]

[[ClientQuote? &quoteid=`5`]]

[!ClientQuote? &quoteid=`5`!]

$resourceparent = $quoteid;  // the folder that contains quote documents
$output = '';  // initialise the quote variable
$resource = $modx->getActiveChildren($resourceparent,'createdon', 'DESC', $fields='content'); // get array of children
$limit=count($resource); // count how many in the array
if($limit<1) {
   $output .= "No entries found.<br />";
   return $output;
}
$random = (rand(1, $limit) - 1); // make a random number between 1 and $limit, subtract 1 to allow for array counting from 0 not 1
$output .= $resource[$random]['content']; // grab a random document's content from the $resource array
return $output;