mysql to mysqli change [duplicate]

问题

This question already has answers here:

How to change mysql to mysqli? (12 answers)

Closed 16 hours ago.

who can help me turn this code into mysqli? Ho tentato più soluzioni ma nn riesco a trasformarlo. THX

function GetFilesById($Id){
    $query = "SELECT * FROM allegati where id=$Id";
    $result = mysql_query($query);

    $data = MYSQL_RESULT($result,0,"data"); 
    $type = MYSQL_RESULT($result,0,"filetype"); 
    $name = MYSQL_RESULT($result,0,"filename"); 

    $myFile = array("data" => $data,
                    "type" => $type,
                    "name" => $name,
                    );
    return $myFile;
}

回答1:

Define DB connection variable like: $conn = new mysqli($servername, $username, $password);

Now instead of calling --- $result = mysql_query($query);

Just call --- $result = mysqli_query($conn, $query);

来源：https://stackoverflow.com/questions/61054748/mysql-to-mysqli-change