Home php教程 php手册 PHP断点续传-HTTP

PHP断点续传-HTTP

Jun 21, 2016 am 08:52 AM
content header range size

  

  /**

  * PHP-HTTP断点续传实现

  * @param string $path: 文件所在路径

  * @param string $file: 文件名

  * @return void

  */

  function download($path,$file) {

  $real = $path.'/'.$file;

  if(!file_exists($real)) {

  return false;

  }

  $size = filesize($real);

  $size2 = $size-1;

  $range = 0;

  if(isset($_SERVER['HTTP_RANGE'])) {

  header('HTTP /1.1 206 Partial Content');

  $range = str_replace('=','-',$_SERVER['HTTP_RANGE']);

  $range = explode('-',$range);

  $range = trim($range[1]);

  header('Content-Length:'.$size);

  header('Content-Range: bytes '.$range.'-'.$size2.'/'.$size);

  } else {

  header('Content-Length:'.$size);

  header('Content-Range: bytes 0-'.$size2.'/'.$size);

  }

  header('Accenpt-Ranges: bytes');

  header('application/octet-stream');

  header("Cache-control: public");

  header("Pragma: public");

  //解决在IE中下载时中文乱码问题

  $ua = $_SERVER['HTTP_USER_AGENT'];

  if(preg_match('/MSIE/',$ua)) {

  $ie_filename = str_replace('+','%20',urlencode($file));

  header('Content-Dispositon:attachment; filename='.$ie_filename);

  } else {

  header('Content-Dispositon:attachment; filename='.$file);

  }

  $fp = fopen($real,'rb+');

  fseek($fp,$range);

  while(!feof($fp)) {

  set_time_limit(0);

  print(fread($fp,1024));

  flush();

  ob_flush();

  }

  fclose($fp);

  }

  /*End of PHP*/



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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Two Point Museum: All Exhibits And Where To Find Them
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

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)

Use java's File.length() function to get the size of the file Use java's File.length() function to get the size of the file Jul 24, 2023 am 08:36 AM

Use Java's File.length() function to get the size of a file. File size is a very common requirement when dealing with file operations. Java provides a very convenient way to get the size of a file, that is, using the length() method of the File class. . This article will introduce how to use this method to get the size of a file and give corresponding code examples. First, we need to create a File object to represent the file we want to get the size of. Here is how to create a File object: Filef

How does SpringBoot pass parameters in the Header through Feign calls? How does SpringBoot pass parameters in the Header through Feign calls? May 16, 2023 pm 08:38 PM

[SpringBoot] Passing parameters in the Header through Feign calls How to pass Header parameters through Feign Problem description When we use Feign to request the Api interface of another service in Spring Cloud, there is a need to pass the parameters in the Header. If no special processing is done, it will The parameters in the Header will be lost. Solution 1: Pass it through @RequestHeader(name="headerName"). For example: Feign is defined as follows @FeignClient(name="service-name")pub

What does linux header mean? What does linux header mean? Jul 18, 2023 pm 03:34 PM

The Linux header refers to the beginning of a file or data stream, which is used to contain metadata about the content. By correctly writing and using Header files, developers can better utilize system resources and improve code readability and Maintainability.

How to use PHP header() method to adjust web pages How to use PHP header() method to adjust web pages Mar 28, 2023 pm 01:54 PM

PHP is a powerful programming language that can be used to create dynamic websites and web applications. One of the most powerful features is PHP’s header() method. In this article, we will explore how to use PHP’s header() method to adjust web pages.

How to jump in php header How to jump in php header Dec 02, 2022 am 09:14 AM

How to implement jump in php header: 1. Use "Header("Location:$url");" syntax to implement jump; 2. Use if judgment to implement jump, with jump statements such as "if($_COOKIE[" u_type"]){ header('location:register.php'); } else{ setcookie('u_type','1','86400*360');".

What is the difference between html5 tag head and header? What is the difference between html5 tag head and header? Jan 17, 2022 am 11:10 AM

Differences: 1. The head tag is used to define the head of the document, which is a container for all head elements, and the header tag is used to define the header (introduction information) of the document; 2. All browsers support the head tag, and older versions of browsers None of the browsers support the header tag, and browsers such as IE9+ and above are required to support the header tag.

PHP returns all the values ​​in the array to form an array PHP returns all the values ​​in the array to form an array Mar 21, 2024 am 09:06 AM

This article will explain in detail how PHP returns all the values ​​of an array to form an array. The editor thinks it is quite practical, so I share it with you as a reference. I hope you can gain something after reading this article. Using the array_values() function The array_values() function returns an array of all the values ​​in an array. It does not preserve the keys of the original array. $array=["foo"=>"bar","baz"=>"qux"];$values=array_values($array);//$values ​​will be ["bar","qux"]Using a loop can Use a loop to manually get all the values ​​of the array and add them to a new

How Nginx distributes through the identity in the header How Nginx distributes through the identity in the header May 11, 2023 pm 04:01 PM

Nginx can distribute requests to different servers based on custom identifiers in the request headers. Specifically, you can use the map directive to map the custom identifier in the request header to a different backend server address, and then use the proxy_pass directive to forward the request to the corresponding backend server. The following is an example configuration file: http{map$http_my_header$backend{defaultbackend1.example.com;value1backend2.example.com;value2backend3.example.com;}upstreambackend1{serv

See all articles