简单地从mysql转换为mysqli [英] Simply converting from mysql to mysqli

问题描述

我想知道是否有人可以指出将脚本更改为mysqli的正确方向?我在下面完全使用mysql构建了脚本，并且完美可以正常运行，但此后我被告知mysql_已贬值，现在我需要使用mysqli. (在mysql_消失之前，我留下了一个错误加剧了网站的信息).

I was wondering if someone could please point me in the right direction for changing my script into mysqli? I built the script below fully with mysql and it works perfectly but I have since been told that mysql_ is depreciated and I now need to use mysqli. (before mysql_ dies out and I'm left with an error fuelled website).

脚本:

<?php

//This is the directory where images will be saved
$target = "images/";
$target = $target . basename( $_FILES['photo']['name']);

//This gets all the other information from the form
$name= (isset($_POST['image_author']));
$description= ($_POST['image_description']);
$pic=($_FILES['photo']['name']);


// Connects to your Database
mysql_connect("localhost", "root", "root") or die(mysql_error()) ;
mysql_select_db("image_gallery") or die(mysql_error()) ;

//Writes the information to the database
mysql_query("INSERT INTO images (image_author, image_description, image_pathname)
VALUES ('$name', '$description', '$pic'");

//Writes the photo to the server
if(move_uploaded_file($_FILES['photo']['tmp_name'], $target))
{

//Tells you if its all ok
echo "The file has been uploaded, and your information has been added to the directory <p> <a href='upload.php'> Go back</a>";
}
else {

//Gives and error if its not
echo "Sorry, there was a problem uploading your file.";
}
?>

推荐答案

尝试一下，我如下使用它.在这里更改db_name =您的原始数据库ame

Try this, I used it as below. Here change db_name = your original database ame

db.php(创建一个单独的连接文件)

db.php (create a separate connection file)

$db_hostname = "localhost";  //usually "localhost be default"
$db_username = "root";  //your user name
$db_pass = "root";  //the password for your user
$db_name = "yourdatabasename";  //the name of the database

// connect to database
$db = new mysqli ($db_hostname, $db_username, $db_pass, $db_name);
if ($db->connect_error) {
trigger_error('Database connection failed: '  . $db->connect_error,   E_USER_ERROR);
}

现在这是您的文件

<?php
include('db.php');
//This is the directory where images will be saved
$target = "images/";
$target = $target . basename( $_FILES['photo']['name']);

//This gets all the other information from the form
$name= (isset($_POST['image_author']));
$description= ($_POST['image_description']);
$pic=($_FILES['photo']['name']);


// Connects to your Database
mysqli_select_db($db,"image_gallery") or die(mysqli_error($db)); 

//Writes the information to the database
$result = mysqli_query($db,"INSERT INTO images (image_author, image_description, image_pathname) VALUES ('$name', '$description', '$pic')");

//Writes the photo to the server
if(move_uploaded_file($_FILES['photo']['tmp_name'], $target))
{

//Tells you if its all ok
echo "The file has been uploaded, and your information has been added to the directory <p> <a href='upload.php'> Go back</a>";
}
else {

//Gives and error if its not
echo "Sorry, there was a problem uploading your file.";
}
?>

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