PHP com\indigloo Util::isUtf8示例

function detect_bad_utf8($mysqli, $flag = false)
{
    $sql = "select max(id) as total from sc_post ";
    $row = MySQL\Helper::fetchRow($mysqli, $sql);
    $total = $row["total"];
    $pageSize = 50;
    $pages = ceil($total / $pageSize);
    $count = 0;
    while ($count <= $pages) {
        $start = $count * $pageSize + 1;
        $end = $start + ($pageSize - 1);
        $sql = " select pseudo_id,title,description from sc_post where  (id <= {end}) and (id >= {start} ) ";
        $sql = str_replace(array("{end}", "{start}"), array(0 => $end, 1 => $start), $sql);
        $rows = MySQL\Helper::fetchRows($mysqli, $sql);
        printf("processing row between %d and %d \n", $start, $end);
        foreach ($rows as $row) {
            $description = $row['description'];
            if (!Util::isUtf8($description)) {
                printf("Bad utf-8 for item - %s \n", $row['pseudo_id']);
                if ($flag) {
                    $clean_description = Util::filterBadUtf8($description);
                    $clean_title = Util::filterBadUtf8($row['title']);
                    update_clean_utf8($mysqli, $row['pseudo_id'], $clean_title, $clean_description);
                }
            }
        }
        sleep(1);
        $count++;
    }
}