mysqli类的对象无法转换为字符串

Question

My problem isn't the same as the other questions, I use a dramatically different code which I'm not sure how to deal with or how to apply solutions of others' codes to mine.

I am getting the error

Object of class mysqli could not be converted to string in

This is the part where my code has problems

    <?php
function aggiornamento($utente){
global $conn;
global $_CONFIG;
           $selezione=mysqli_query($conn, "SELECT * FROM ".$_CONFIG['db_account'].".account WHERE login = '".$utente."' LIMIT 1");
           while ($account = mysqli_fetch_array($selezione))
           {
    $_SESSION['IShop_Login']= $account['login'];
           }
} ?>

Whereas line 5 is the "faulty" line

Answer 1

you can use like

$conn=mysqli_connect($host,$username,$password,$dbname);

try to connect first with you db and then use it like

$selezione=mysqli_query($conn, "SELECT * FROM ".$_CONFIG['db_account'].".account WHERE login = '".$utente."' LIMIT 1");
           while ($account = mysqli_fetch_array($selezione))

you can refer link

http://php.net/manual/en/mysqli.query.php

we have procedural style of mysqli_query

Hope this solves your query