Show MODX chunk based on usergroup membership

showChunk

<?php
/* ShowChunk snippet : Credit: Bob Ray */
 
$subChunks = explode(',',  $scriptProperties['subscriberChunks']);
$otherChunks = explode(',',  $scriptProperties['otherChunks']);
 
if ($modx->user->isMember('paid-members')) {
    foreach ($subChunks as $subChunk) {
        $output .= $modx->getChunk($subChunk);
    }
} else {
    foreach ($otherChunks as $otherChunk) {
        $output .= $modx->getChunk($otherChunk);
    }
}
 
return $output;