Question

我被反复告知我需要停止使用sql所以我想把我在mysql中的遗骸翻译成mysqli。但是，我正在努力使用这段代码。我想知道是否有人可以帮我翻译它。以下教程，视频和翻译人员都有这样的问题，想知道是否有人有时间为我翻译。我不想问，但我真的很感激。感谢。

include 'check.php';
$user = $_SESSION['username'];
if ($user) {
    //user is logged in
    if (isset($_POST['submit'])) {
        //check fields
        $oldpassword = md5($_POST['oldpassword']);
        $newpassword = md5($_POST['newpassword']);
        $repeatnewpassword = md5($_POST['repeatnewpassword']);

    // Connect to server and select databse.
    $host = 'localhost';
    // Host name
    $username = '';
    // Mysql username
    $password = '';
    // Mysql password
    $db_name = '';
    // Database name


    mysqli_connect("{$host}", "{$username}", "{$password}") or die('cannot connect');

//STRUGGLING HERE!

    }
    while ($row = mysqli_fetch_array($queryget)) {
        $oldpassworddb = $row['password'];
    }
    //check passwords
    if ($oldpassword == $oldpassworddb) {
        //check new passowrds
        if ($newpassword == $repeatnewpassword) {
            //success
            //change password in db
            $querychange = mysqli_query($link, "UPDATE members SET password='{$newpassword}' WHERE username ='{$user}'");
            header('refresh:2;url=logout.php');
            die('Your password has successfully been changed.');
        } else {
            die('Your new passwords do not match');
        }
    } else {
        die('Password doesn\'t match');
    }
} else {
    echo "Some text";
    }

}
?>

我正在努力与我说过，这就是我试图进入的那个没有工作

mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
    mysql_select_db("$db_name")or die("cannot select DB");

    $queryget = mysql_query("SELECT password FROM members WHERE username='$user'");

    if($queryget === FALSE) { 
    die(mysql_error()); // TODO: better error handling
}

我想。

Answer 1

这没有明显的测试，但我认为会有效

<?php

include('check.php');
$user = $_SESSION['username'];

if($user)
{
//user is logged in
if (isset($_POST['submit']))

{
//check fields

$oldpassword = md5($_POST['oldpassword']);
$newpassword = md5($_POST['newpassword']);
$repeatnewpassword = md5($_POST['repeatnewpassword']);

// Connect to server and select databse.
$host="localhost"; // Host name 
$username=""; // Mysql username 
$password=""; // Mysql password 
$db_name=""; // Database name
$mysqli = new mysqli($host,$username,$password,$db_name);

if (mysqli_connect_errno()) {
    printf("Falló la conexión failed: %s\n", $mysqli->connect_error);
    exit();
}

$queryget = $mysqli->query("SELECT password FROM members WHERE 
username='$user'");

if($queryget === FALSE) { 
    die($mysqli->error()); // TODO: better error handling
}
while($row = $mysqli->fetch_array(MYSQLI_NUM){
    $oldpassworddb = $row['password'];
}

过时的mysql到更新的mysqli

1 个答案: