Пара вопросов по SimpleSearch

$text = trim(preg_replace('/\s+/', ' ', $this->sanitize($text)));

$text = trim(preg_replace('/\s+/u', ' ', $this->sanitize($text)));

$string = preg_replace('/' . $quoteValue . '/i', '<'.$tag.' class="'.$cls.'">$0</'.$tag.'>', $string);

$string = preg_replace('/' . $quoteValue . '/iu', '<'.$tag.' class="'.$cls.'">$0</'.$tag.'>', $string);

$text = preg_replace('/(\[\[\+.*?\]\])/i', '', $text);

$text = preg_replace('/(\[\[\+.*?\]\])/iu', '', $text);

//if (!empty($str)) $this->searchString = strip_tags($this->modx->sanitizeString($str));

<form id="searchform" action="[[~[[+landing:default=`[[*id]]`]]]]" method="[[+method:default=`get`]]">
<div>
<input id="searchField" class="my_class" type="text" name="my_custom_search_field" value="[[+searchValue:default=``]]"/>
<!--<input name="submit" type="submit" value="Поиск"/>
<input id="searchIcon" class="utilityButton" type="image" alt="Search" src="/assets/templates/my/images/searchButton.png">
<input type="hidden" name="id" value="[[+landing:default=[[*id]]]]" />-->
</div>
</form>

[[SimpleSearchForm? &tpl=`mySearchFormTpl` &landing=`46`]]

[[!SimpleSearch? &searchIndex=`my_custom_search_field`]]

$text = preg_replace('/(\[\[\+.*?\]\])/i', '', $text);

$text = preg_replace('/(\[\[\+.*?\]\])/iu', '', $text);

$extract = strip_tags(preg_replace("#\<!--(.*?)--\>#si",'',$extract));
$extract = preg_replace("#\[\[(.*?)\]\]#si",'',$extract);

$extract = strip_tags(preg_replace("#\<!--(.*?)--\>#siu",'',$extract));
$extract = preg_replace("#\[\[(.*?)\]\]#siu",'',$extract);

$string = preg_replace('/' . $quoteValue . '/iu', '<'.$tag.' class="'.$cls.'">$0</'.$tag.'>', $string);