<?php
/*
 * description: returns a substring of the placeholder
 * usage: [+string:substr=`0,-3`+] - cuts the last three chars of the placeholder
 */
if (strlen($options) > 0) {
    $data = explode(",", trim($options), 2);
    $start = (!empty ($data [0]) && is_numeric($data [0])) ? $data [0] : 0;
    $length = (!empty ($data [1])) ? $data [1] : 0;
    $result = substr($output, $start, $length);
    return $result;
}