Home Backend Development PHP Tutorial PHP 大文件上传进度条实现_PHP

PHP 大文件上传进度条实现_PHP

Jun 01, 2016 pm 12:20 PM

目前我知道的方法有两种,一种是使用PHP的创始人 Rasmus Lerdorf 写的APC扩展模块来实现(http://pecl.php.net/package/apc),另外一种方法是使用PECL扩展模块uploadprogress实现(http://pecl.php.net/package/uploadprogress) 我这里举两个分别实现的例子供参考,更灵活的应用根据自己需要来修改。

APC实现方法:

安装APC,参照官方文档安装,可以使用PECL模块安装方法快速简捷,这里不说明

配置php.ini,设置参数 apc.rfc1867=1 ,使APC支持上传进度条功能,在APC源码说明文档里面有说明

代码范例:


if ($_SERVER['REQUEST_METHOD'] == ‘POST‘) { //上传请求
$status = apc_fetch(‘upload_‘ . $_POST['APC_UPLOAD_PROGRESS']);
$status['done'] = 1;
echo json_encode($status); //输出给用户端页面里的ajax调用,相关文档请自己寻找
exit;
} elseif (isset($_GET['progress_key'])) { //读取上传进度
$status = apc_fetch(‘upload_‘.$_GET['progress_key']);
echo json_encode($status);
exit;
} else {
//其他代码,比如上传表单等
}

uploadprogress 模块实现方法:

使用PECL模块安装方法安装该模块

php.ini里面设置 uploadprogress.file.filename_template = “/tmp/upd_%s.txt”

代码范例:


if($_SERVER['REQUEST_METHOD']==‘POST‘) {
if (is_uploaded_file($_FILES['upfile']['tmp_name'])) {
$upload_dir = ‘your_path/‘;
$ext = strrchr($_FILES['video']['name'], ‘.‘);
$sessid = $_POST['UPLOAD_IDENTIFIER'] ;
$tmpfile = $upload_dir . $sessid;
$sessfile = $upload_dir . $sessid .$ext;
if (move_uploaded_file($_FILES['upfile']['tmp_name'],$tmpfile)) {
//上传成功
} else {
//上传失败
} else {
//上传错误

} elseif (!empty($_GET['sessid'])) {
header(“Expires: Mon, 26 Jul 1997 05:00:00 GMT“);
header(“Last-Modified: “ . gmdate(“D, d M Y H:i:s“) . “ GMT“);
header(“Cache-Control: no-store, no-cache, must-revalidate“);
header(“Cache-Control: post-check=0, pre-check=0“, false);
header(“Pragma: no-cache“);
header(“Content-Type:text/html;charset=UTF-8“);

$unique_id = $_GET['sessid'];
$uploadvalues = uploadprogress_get_info($unique_id);

if (is_array($uploadvalues)) {
echo json_encode($uploadvalues);
} else {
//读取进度失败,另外处理逻辑
}

} else {
//显示上传表单
}

 

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. 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,

Describe the SOLID principles and how they apply to PHP development. 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 automatically set permissions of unixsocket after system restart? 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...

How to debug CLI mode in PHPStorm? 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...

How to send a POST request containing JSON data using PHP's cURL library? How to send a POST request containing JSON data using PHP's cURL library? Apr 01, 2025 pm 03:12 PM

Sending JSON data using PHP's cURL library In PHP development, it is often necessary to interact with external APIs. One of the common ways is to use cURL library to send POST�...

Explain late static binding in PHP (static::). 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.

Explain the concept of late static binding in PHP. Explain the concept of late static binding in PHP. Mar 21, 2025 pm 01:33 PM

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

See all articles