Using a TV to present an unordered list?

<ul="sidebarList>
<li>Item One</li>
<li>Item Two</li>
<li>Item Three</li>
</ul>

[!ShowList? &tv=`[*MyListTv*]` !]

<?php
/* at this point, the $tv variable will contain the options the user selected
    separated by '||';
*/

/* display nothing it no items were checked */
if (empty($tv)) {
return '';
}

/* make an array out of the TV value */
$values = explode('||', $tv);

$output = '<ul>';

foreach($values as $value) {
    $output .= '<li>' . $value . '</li>';
}

$output .= '</ul>';

return $output;

[!ShowList? &tv=`[*MyListTv*]` !]

<?php
/* at this point, the $tv variable will contain the options the user selected
    separated by '||';
*/

/* display nothing it no items were checked */
if (empty($tv)) {
return '';
}

/* make an array out of the TV value */
$values = explode('||', $tv);

$output = '<ul>';

foreach($values as $value) {
    $output .= '<li>' . $value . '</li>';
}

$output .= '</ul>';

return $output;
?>

Apples||Oranges||Grapes

[[ShowList? &tv=`Apples||Oranges||Grapes` ]]

<ul>
<li>Apples</li>
<li>Oranges</li>
<li>Grapes</li>
</ul>

<?php
$id = (isset($id))? $id : $modx->documentIdentifier;
$tvName = (isset($tvName))? $tvName : 'MyListTv';
$output = '';
$data = $modx->getTemplateVarOutput(true, $id);
$tv = $data[''.$tvName.''];
if (!empty($tv)) {
$values = explode('||', $tv);
$output .= '<ul>';
foreach($values as $value) {
    $output .= '<li>' . $value . '</li>';
}
$output .= '</ul>';
}
return $output;
?>

$values = explode('||', $tv);

$values = explode(',', $tv);

<ul>
<li>Apples</li>
<li>Oranges</li>
<li>Grapes</li>
</ul>

<ul><li>Apples</li><li>Oranges</li><li>Grapes</li></ul>

$output = "\n<ul>";
$output .= "\n"  .  '    <li>' . $value . '</li>';
$output = "\n<ul>";