Question

我正在输入'add poll'模块形式的文本框，我正在创建我正在添加的民意调查答案选择是，否，可能。

不，也许被抓住，但是省略了，这是第一个答案？

我相信这是经过多次故障排除后的问题。

for ($i=1; $i <= $number; $i++ )

提交后（从错误日志中）：

数据库错误，语句INSERT INTO db_fpollitems VALUES（NULL，66，No，1,0）。错误是：'字段列表'中的未知列'否'

数据库错误，语句INSERT INTO db_fpollitems VALUES（NULL，66，Maybe，2,0）。错误是：'字段列表'中的未知列'可能'

数据库错误，语句INSERT INTO db_fpollitems VALUES（NULL，66，，3,0）。错误是：您的SQL语法中有错误;检查与MySQL服务器版本对应的手册，以便在第1行使用“3,0”附近的正确语法

如果我更换

"NULL, {$poll['id']}, {$polloptions[$i]}, $i, 0");

与

"NULL, {$poll['id']}, $i, $i, 0");

它返回了1.2.3的明显民意调查答案。

以下是进行问题排查的代码。

if ($_POST['submit'] == "Submit" && $word_ok)
{
    $subject = safesql($_POST['subject'], "text");
    $post = safesql($_POST['article'], "text", false);
    $number = $_POST['numoptions'];

    $pollquest = safesql($_POST['question'], "text");
    $polloptions = $_POST['option'];

    $username = safesql($check['id'], "text");

    $sql = $data->insert_query("ftopics", "NULL, $subject, 0 , $username, $timestamp, $username, $timestamp, $type, $fid, 0");
    if ($sql)
    {
        $sql = $data->select_query("ftopics", "WHERE subject=$subject AND numviews=0");
        $topic = $data->fetch_array($sql);

        $sql = $data->insert_query("fposts", "NULL, $subject, $post, $username, $timestamp, {$topic['id']}, 0, 0");
        if ($sql)
        {
            $data->update_query("users", "numposts = numposts + 1, numtopics = numtopics + 1", "id='{$check['id']}'");

            if ($pollquest != "" && $number > 1)
            {
                $sql = $data->insert_query("fpolls", "NULL, {$topic['id']}, $pollquest");
                if ($sql)
                {
                    $sql = $data->select_query("fpolls", "WHERE topic_id = {$topic['id']} AND question = $pollquest", "id");
                    $poll = $data->fetch_array($sql);
                    for ($i=1; $i <= $number; $i++ )
                    {
                        $data->insert_query("fpollitems", "NULL, {$poll['id']}, {$polloptions[$i]}, $i, 0");
                    }
                }
            }

Answer 1

您正在插入没有引号的文字，请尝试使用此内容：

"NULL, {$poll['id']}, '{$polloptions[$i]}', $i, 0");

您的代码应该像：

if ($_POST['submit'] == "Submit" && $word_ok)
{
    $subject = safesql($_POST['subject'], "text");
    $post = safesql($_POST['article'], "text", false);
    $number = $_POST['numoptions'];

    $pollquest = safesql($_POST['question'], "text");
    $polloptions = $_POST['option'];

    $username = safesql($check['id'], "text");

    $sql = $data->insert_query("ftopics", "NULL, '$subject', 0 , '$username', $timestamp, '$username', $timestamp, '$type', $fid, 0");
    if ($sql)
    {
        $sql = $data->select_query("ftopics", "WHERE subject='$subject' AND numviews=0");
        $topic = $data->fetch_array($sql);

        $sql = $data->insert_query("fposts", "NULL, '$subject', '$post', '$username', $timestamp, {$topic['id']}, 0, 0");
        if ($sql)
        {
            $data->update_query("users", "numposts = numposts + 1, numtopics = numtopics + 1", "id='{$check['id']}'");

            if ($pollquest != "" && $number > 1)
            {
                $sql = $data->insert_query("fpolls", "NULL, {$topic['id']}, '$pollquest'");
                if ($sql)
                {
                    $sql = $data->select_query("fpolls", "WHERE topic_id = {$topic['id']} AND question = '$pollquest'", "id");
                    $poll = $data->fetch_array($sql);
                    for ($i=1; $i <= $number; $i++ )
                    {
                        $data->insert_query("fpollitems", "NULL, {$poll['id']}, '{$polloptions[$i]}', $i, 0");
                    }
                }
            }

对于循环不返回全部，省略一个<option> </option>

1 个答案: