Use PHP to implement zip packaging and download functions
This article mainly introduces the function of packaging zip and downloading in PHP. The code is simple and easy to understand, very good, and has certain reference value. Friends who need it can refer to it
The specific code is as follows:
$file_template = FCPATH.'canddata/cand_picture.zip';//在此之前你的项目目录中必须新建一个空的zip包（必须存在）
$downname = $card.'.zip';//你即将打包的zip文件名称
$file_name = FCPATH.'canddata/'.$card.'.zip';//把你打包后zip所存放的目录
$result = copy( $file_template, $file_name );//把原来项目目录存在的zip复制一份新的到另外一个目录并重命名（可以在原来的目录）
$zip = new ZipArchive();//新建一个对象
if ($zip->open($file_name, ZipArchive::CREATE) === TRUE) { //打开你复制过后空的zip包
$zip->addEmptyDir($card);//在zip压缩包中建一个空文件夹，成功时返回 TRUE， 或者在失败时返回 FALSE
//下面是我的场景业务处理，可根据自己的场景需要去处理（我的是将所有的图片打包）
$i = 1;
foreach ($cand_photo as $key3 => $value3) {
$file_ext = explode('.',$value3['cand_face']);//获取到图片的后缀名
$zip->addFromString($card.'/'.$card.'_'.$i.'.'.$file_ext[3] , file_get_contents($value3['cand_face']));//（图片的重命名，获取到图片的二进制流）
$i++;
}
$zip->close();
$fp=fopen($file_name,"r");
$file_size=filesize($file_name);//获取文件的字节
//下载文件需要用到的头
Header("Content-type: application/octet-stream");
Header("Accept-Ranges: bytes");
Header("Accept-Length:".$file_size);
Header("Content-Disposition: attachment; filename=$downname");
$buffer=1024; //设置一次读取的字节数，每读取一次，就输出数据（即返回给浏览器）
$file_count=0; //读取的总字节数
//向浏览器返回数据 如果下载完成就停止输出，如果未下载完成就一直在输出。根据文件的字节大小判断是否下载完成
while(!feof($fp) && $file_count<$file_size){
$file_con=fread($fp,$buffer);
$file_count+=$buffer;
echo $file_con;
}
fclose($fp);
//下载完成后删除压缩包，临时文件夹
if($file_count >= $file_size) {
unlink($file_name);
}
}The above is the entire content of this article. I hope it will be helpful to everyone’s study. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:
Solution to the problem of garbled Chinese characters in the URL using get obtained by PHP
In the WeChat applet PHP backend form submission
The above is the detailed content of Use PHP to implement zip packaging and download functions. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Alipay PHP SDK transfer error: How to solve the problem of 'Cannot declare class SignData'?
Apr 01, 2025 am 07:21 AM
Alipay PHP...
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
How does session hijacking work and how can you mitigate it in PHP?
Apr 06, 2025 am 12:02 AM
Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.
Describe the SOLID principles and how they apply to PHP development.
Apr 03, 2025 am 12:04 AM
The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.
How to debug CLI mode in PHPStorm?
Apr 01, 2025 pm 02:57 PM
How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...
Framework Security Features: Protecting against vulnerabilities.
Mar 28, 2025 pm 05:11 PM
Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.
How to automatically set permissions of unixsocket after system restart?
Mar 31, 2025 pm 11:54 PM
How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
