Home >Backend Development >PHP Tutorial >Simulate a request for a picture. The request header contains range, but why is there no content-range field returned?
Simulate a request for a picture. The request header contains range, but why is there no content-range field returned?
- WBOYOriginal
- 2016-08-29 08:50:481210browse
This is the request header
<code>GET http://subversion.apache.org/images/windows.png HTTP/1.1 Host: subversion.apache.org Range: 1000-3000 Content-Length: 14 Pragma: no-cache </code>
This is the response header
<code>HTTP/1.1 200 OK Date: Sun, 28 Aug 2016 01:33:56 GMT Server: Apache/2.4.7 (Ubuntu) Last-Modified: Thu, 14 Jan 2010 21:29:52 GMT ETag: "1403-47d2696640237" Accept-Ranges: bytes Content-Length: 5123 Content-Type: image/png Cache-Control: no-cache </code>
He directly returned a complete picture. As expected, it should be a partial picture
Reply content:
This is the request header
<code>GET http://subversion.apache.org/images/windows.png HTTP/1.1 Host: subversion.apache.org Range: 1000-3000 Content-Length: 14 Pragma: no-cache </code>
This is the response header
<code>HTTP/1.1 200 OK Date: Sun, 28 Aug 2016 01:33:56 GMT Server: Apache/2.4.7 (Ubuntu) Last-Modified: Thu, 14 Jan 2010 21:29:52 GMT ETag: "1403-47d2696640237" Accept-Ranges: bytes Content-Length: 5123 Content-Type: image/png Cache-Control: no-cache </code>
He directly returned a complete picture. As expected, it should be a partial picture
Statement：
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
Previous article：mysql - php query error Error while sending QUERY packet. PID=xxxNext article：mysql - php query error Error while sending QUERY packet. PID=xxx