How to use PHP and Youpai Cloud API to quickly build a file upload website

How to use PHP and Youpai Cloud API to quickly build a file upload website

With the rapid development of the Internet, the file upload function has become one of the very common requirements in website development. As a well-known cloud service provider in China, Paiyun provides an API that allows us to quickly implement the file upload function. This article will introduce how to use PHP and Youpai Cloud API to quickly build a simple file upload website, so that you can easily implement the file upload function on your website.

First of all, we need to go to Youpaiyun official website to register an account and create a new space. In the process of creating a space, we will get a space name (bucket), and we also need to generate an operator key (operator key) and operator password (operator secret). This information is very critical and we will use it later in the program.

Next, we start writing PHP code. First, we need to introduce Youpaiyun’s SDK. You can download the latest SDK from Youpaiyun’s official website. After unzipping, we put the directory where the SDK is located into our project folder, and then create a file named "index.php".

First, introduce the SDK in the index.php file:

require_once 'upyun-php-sdk/upyun.class.php';

Then, we need to initialize an UpYun object, the code is as follows:

$upyun = new UpYun('空间名', '操作员的密钥', '操作员的密码');

When creating the UpYun object , we need to pass in the space name, operator's key and operator's password that were obtained when creating the space previously.

Next, we need to handle the logic of file upload. First, we need to detect whether the user clicked the upload button. The code is as follows:

if(isset($_POST['submit'])){
    // 进行文件上传逻辑
}

Then, we obtain the file information uploaded by the user through the $_FILES array. The code is as follows:

$fileInfo = $_FILES['file'];

Obtain the file information Finally, we need to upload the file to the designated space of Youpaiyun. The code is as follows:

$uploadFile = $fileInfo['tmp_name'];
$remoteFile = '/uploads/' . $fileInfo['name'];
$result = $upyun->writeFile($remoteFile, $uploadFile, True);

In the above code, we first define the path for the file to be uploaded to Youpaiyun. Here we save the file name in the "uploads" folder under the upload directory. Then, we called the writeFile method of the UpYun object to implement the file upload function. The first parameter of the writeFile method is the uploaded file path, the second parameter is the local file path, and the third parameter is a Boolean value indicating whether to automatically create the directory (if the directory does not exist, it will be automatically created).

Finally, after the file upload is successful, we can give the user a prompt message. The code is as follows:

if($result){
    echo '文件上传成功！';
} else {
    echo '文件上传失败！';
}

At this point, we have completed the integration of PHP and Youpai Cloud API and implemented file upload. Function. The complete code is as follows:

<?php

require_once 'upyun-php-sdk/upyun.class.php';

$upyun = new UpYun('空间名', '操作员的密钥', '操作员的密码');

if(isset($_POST['submit'])){
    $fileInfo = $_FILES['file'];
    $uploadFile = $fileInfo['tmp_name'];
    $remoteFile = '/uploads/' . $fileInfo['name'];
    $result = $upyun->writeFile($remoteFile, $uploadFile, True);
    if($result){
        echo '文件上传成功！';
    } else {
        echo '文件上传失败！';
    }
}

?>

<form action="" method="post" enctype="multipart/form-data">
    <input type="file" name="file">
    <input type="submit" name="submit" value="上传">
</form>

Access the index.php file in your browser and you will see a simple file upload form. After selecting a file, click the upload button to upload the file to the space designated by Youpaiyun.

Through this article, we learned how to use PHP and Youpai Cloud API to quickly build a simple file upload website. Of course, this article is just an entry-level example. If you have higher requirements for the file upload function, you can further consult Youpaiyun’s official documentation. Hope this article helps you!

The above is the detailed content of How to use PHP and Youpai Cloud API to quickly build a file upload website. For more information, please follow other related articles on the PHP Chinese website!