<select data-placeholder="Search..." name="parent" id="parent">
<option></option>
[[!getResources?
&parents=`0`
&tpl=`Search Option`
&where=`{"isfolder:=":"1"}`
&sortby=`alias`
&sortdir=`ASC`
&depth=`0`
&includeContent=`1`
]]
</select><option[[!getReqParam:is=`[[+id]]`:then=`selected="selected"`:else=``? &name=`parent`]] value="[[+id]]">[[+pagetitle]]</option>
<p>The term [[+query]] can’t be found.</p>
This question has been answered by BobRay. See the first response.
?parent=2&search=modx&id=21
<form action="[[~[[+landing:default=`[[*id]]`]]]]" method="[[+method:default=`get`]]">
<fieldset>
<select data-placeholder="Search..." name="parent" id="parent">
<option></option>
[[!getResources?
&parents=`0`
&tpl=`Search Option`
&where=`{"isfolder:=":"1"}`
&sortby=`alias`
&sortdir=`ASC`
&depth=`0`
&includeContent=`1`
]]
</select>
<input type="text" name="[[+searchIndex]]" id="[[+searchIndex]]" value="[[+searchValue]]">
<input type="hidden" name="id" value="[[+landing:default=[[*id]]]]">
<input type="submit" value="[[%sisea.search? &namespace=`sisea` &topic=`default`]]">
</fieldset>
</form>[[!GetTitle]
<?php
$fields = array('name' => 'id');
$docId = (int) $modx->runSnippet('getUrlParam', $fields);
$query = $modx->newQuery('modResource', $docId);
$query->select('pagetitle');
return $modx->getValue($query->prepare());