src/Service/doTriggerService.php
static private function _makeArray($string)
    {
        if (!$string)
            return null;
        $arr = explode(";", $string);
        $size = count($arr);
        for ($i = 0; $i < $size; $i ++)
            $arr[$i] = trim($arr[$i]);
        return $arr;
    }
static private function _makeArray($string)
    {
        if (!$string)
            return null;
        $arr = explode(";", $string);
        $size = count($arr);
        for ($i = 0; $i < $size; $i ++)
            $arr[$i] = trim($arr[$i]);
        return $arr;
    }
Make array from string with semi colon delimited

@param string $string string with ";" (semi colon) delimited
@return array