警告:mysqli_query()至少需要2个参数，给定1个 [英] Warning: mysqli_query() expects at least 2 parameters, 1 given

问题描述

我正在建立一个网站，并且继续收到此错误警告:mysqli_query()至少需要2个参数，其中1个是给定的.这非常令人沮丧，我似乎找不到解决方法.谁能重新编码我的代码或让我知道如何解决它?

I'm make a website and I keep on getting this error " Warning: mysqli_query() expects at least 2 parameters, 1 given in." It has been very frustrating and I can't seem to find a way to fix. Can anyone re-code my code or let me know how to fix it?

我的代码是:

<?php
$sitename = "xxxxx.com";
$link = mysqli_connect("xxxxx.com", "xxxxx.com", "xxxxx.com");
$db_selected = mysqli_select_db('xxxxx.com', $link);
mysqli_query("SET NAMES utf8");

function fetchinfo($rowname,$tablename,$finder,$findervalue) {
        if($finder == "2") $result = mysqli_query("SELECT $rowname FROM $tablename");
else $result = mysqli_query("SELECT $rowname FROM $tablename WHERE `$finder`='$findervalue'");
$row = mysqli_fetch_assoc($result);
return $row[$rowname];

} ?>

推荐答案

您需要指定连接.

$result = mysqli_query($link, "SELECT $rowname FROM $tablename WHERE $finder`='$findervalue'");

此外，如果您的连接不是完全伪造的伪代码(重复* .com)，那么您的连接是错误的.它应该与此类似:

Plus, your connect is wrong if it's not entirely faked pseudocode (repeated *.com's). It should be similar to this:

$link=mysqli_connect("site","user","pw","db");

使用正确的凭据填写.

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