APC方法实现PHP上传多个文件原理剖析
我们在上传多个文件的时候可能往往需要很长的等待时间,而且受网络和软件等的影响,经常会出现超时及上传失败的现象。如何在PHP上传多个文件时实时的得到文件上传进度,以及如何避开php和其他因素的限制上传任意大小的文件呢?
- 经验总结:示例PHP上传文件代码
- 五分钟解决PHP上传文件代码演示
- 挖掘PHP上传文件类型原理实现
- 三步FTP实现PHP上传文件代码剖析
- 两种PHP上传文件大小限制解决方案
先说说流程,首先用php的socket函数库建立一个临时的http服务器,在某一端口监听,然后把 ip地址和端口号通知客户端,客户端把上传表单提交(临时服务器), 临时服务器接受客户端请求,并读取post数据,分析并获取客户端上传的文件信息,把文件保存在服务器上,然后关闭临时服务器,释放资源,上传完成。有点绕,不过思路还是简单的。
稍后我会发布一个类库,暂定名为:UGiA Visual PHP Uploader, 这样大家就可以在程序中很方便的调用了。PHP上传多个文件效果如下:
PHP上传多个文件之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:
<ol class="dp-xml"> <li class="alt"><span><span>if ($_SERVER['REQUEST_METHOD'] == 'POST') { //上传请求 </span></span></li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">status</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">apc_fetch</font></span><span>('upload_' . $_POST['APC_UPLOAD_PROGRESS']); </span> </li> <li class="alt"><span>$status['done'] = 1; </span></li> <li class=""><span>echo json_encode($status); //输出给用户端页面里的ajax调用,相关文档请自己寻找 </span></li> <li class="alt"><span>exit; </span></li> <li class=""><span>} elseif (isset($_GET['progress_key'])) { //读取上传进度 </span></li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">status</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">apc_fetch</font></span><span>('upload_'.$_GET['progress_key']); </span> </li> <li class=""><span>echo json_encode($status); </span></li> <li class="alt"><span>exit; </span></li> <li class=""><span>} else { </span></li> <li class="alt"><span>//其他代码,比如上传表单等 </span></li> <li class=""><span>} </span></li> </ol>
uploadprogress 模块实现方法:
<ol class="dp-xml"> <li class="alt"><span><span>使用PECL模块安装方法安装该模块php.ini里面设置 </span><span class="attribute"><font color="#ff0000">uploadprogress.file.filename_template</font></span><span> = “/tmp/upd_%s.txt”代码范例: </span></span></li> <li class=""><span>if($_SERVER['REQUEST_METHOD']=='POST') { </span></li> <li class="alt"><span>if (is_uploaded_file($_FILES['upfile']['tmp_name'])) { </span></li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">upload_dir</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">'your_path/'</font></span><span>; </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">ext</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">strrchr</font></span><span>($_FILES['video']['name'], '.'); </span> </li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">sessid</font></span><span> = $_POST['UPLOAD_IDENTIFIER'] ; </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">tmpfile</font></span><span> = $upload_dir . $sessid; </span> </li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">sessfile</font></span><span> = $upload_dir . $sessid .$ext; </span> </li> <li class="alt"><span>if (move_uploaded_file($_FILES['upfile']['tmp_name'],$tmpfile)) { </span></li> <li class=""><span>//上传成功 </span></li> <li class="alt"><span>} else { </span></li> <li class=""><span>//上传失败 </span></li> <li class="alt"><span>} else { </span></li> <li class=""><span>//上传错误 </span></li> <li class="alt"><span> </span></li> <li class=""><span>} elseif (!empty($_GET['sessid'])) { </span></li> <li class="alt"><span>header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); </span></li> <li class=""><span>header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); </span></li> <li class="alt"><span>header("Cache-Control: no-store, no-cache, must-revalidate"); </span></li> <li class=""> <span>header("Cache-Control: </span><span class="attribute"><font color="#ff0000">post-check</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">0</font></span><span>, </span><span class="attribute"><font color="#ff0000">pre-check</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">0</font></span><span>", false); </span> </li> <li class="alt"><span>header("Pragma: no-cache"); </span></li> <li class=""> <span>header("Content-Type:text/html;</span><span class="attribute"><font color="#ff0000">charset</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">UTF</font></span><span>-8"); </span> </li> <li class="alt"><span> </span></li> <li class=""> <span>$</span><span class="attribute"><font color="#ff0000">unique_id</font></span><span> = $_GET['sessid']; </span> </li> <li class="alt"> <span>$</span><span class="attribute"><font color="#ff0000">uploadvalues</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">uploadprogress_get_info</font></span><span>($unique_id); </span> </li> <li class=""><span> </span></li> <li class="alt"><span>if (is_array($uploadvalues)) { </span></li> <li class=""><span>echo json_encode($uploadvalues); </span></li> <li class="alt"><span>} else { </span></li> <li class=""><span>//读取进度失败,另外处理逻辑 </span></li> <li class="alt"><span>} </span></li> <li class=""><span> </span></li> <li class="alt"><span>} else { </span></li> <li class=""><span>//显示上传表单 </span></li> </ol>

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

AI Hentai Generator
Generate AI Hentai for free.

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

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

To work on file upload we are going to use the form helper. Here, is an example for file upload.

In this chapter, we are going to learn the following topics related to routing ?

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

Validator can be created by adding the following two lines in the controller.
