Home > php教程 > php手册 > body text

php将图片文件转换成二进制输出的方法,

WBOY
Release: 2016-06-13 09:01:58
Original
1230 people have browsed it

php将图片文件转换成二进制输出的方法,

本文实例讲述了php将图片文件转换成二进制输出的方法。分享给大家供大家参考。具体实现方法如下:

header( "Content-type: image/jpeg");
$PSize = filesize('1.jpg');
$picturedata = fread(fopen('1.jpg', "r"), $PSize);
echo $picturedata;

Copy after login

就这么简单4行代码,就将图片以二进制流的形式输出到客户端了,和打开一张图片没有任何区别。

这里需要注意的是,发送的header要根据具体情况而定,不一定都是image/jpeg。JPG的就是image/jpeg,但PNG的就是image/png.不同类型的图片输出不同的头部。

希望本文所述对大家的php程序设计有所帮助。

Related labels:
source:php.cn
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
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template