Answered Can I use @EVAL in custom renderer?

@EVAL return $modx->runSnippet('getListboxVal');

<?php
$tvn = 'mxAges';
$value = intval(6);
$name = '';
if ($tvn) {
    $tv = $modx->getObject('modTemplateVar',array('name'=>$tvn));
    $elements = $tv->get('elements');
    $i=0;
    $tvElements = array();
    foreach(explode("||",$elements) as $val){
        $vl = explode("==",$val);
        $tvElements[$i]['name'] = $vl[0];
        $tvElements[$i]['val'] = $vl[1];
        $i++;
    }
    
    foreach ($tvElements as $element) {
        if($element['val'] == $value){
            $name = $element['name'];
        }
    }
    return $name;
}
else{
    
    return '';
}