PHP使用QRCode 轻松实现二维码扫描上载的功能
PHP使用QRCode 轻松实现二维码扫描下载的功能
随着Android平台的应起,国内出现了很多优秀第三方的应用市场,他们都提供一个二维码下载功能,这是一个很人性化的功能,拿机你的HTC或者 摩托罗拉安卓手机,打开WIFI,安装好一个二维码扫描软件, 使用相机功能扫描一下二维码,就直接下载安装,前段时间因公司一个安卓应用
的网站机范儿
, 要使用PHP实现这个功能,这篇文章将做个总结,帮助有需要做这个功能的朋友.
网上已经有几种实现方式,像使用Google开放API, libqrencode等等,这篇文章将主要讨论使用PHP优秀的开源QRcode类库来实现这个功能,大大简化了我们的工作,我们所要做的仅仅是下载源码包并且包含到你的项目里面,仅仅一行代码就搞定这个功能。
1. 下载源码包:
项目地址:http://phpqrcode.sourceforge.net/
下载:http://sourceforge.net/projects/phpqrcode/
2.引入到你的PHP文件
<?php require_once($libdir.'/qrcode/qrlib.php');
有两种方式,一种是使用qrlib.php 文件,使用插件的形式来读取所有类库,另外一个是使用phpqrcode.php 文件,这是一个合并的版本,所有类库全部包括在这个文件里面,如果你服务器安装有APC缓存,可以考虑使用这个类库来提高效率。
参数配置直接在qrconfig.php文件里面修改.通常只修改两个常量
define('QR_CACHEABLE', true); // 是否使用缓存 define('QR_CACHE_DIR', $console.DIRECTORY_SEPARATOR.'cache'); //更改你自己的缓存目录,确保可写
3. 生成二维码图片
QRcode::png('http://www.pfanr.com/download/'.$pid.'.html','/data/webroot/images/ddd.png',);
传入两个参数,一个是文件下载的地址,一个是二维码图片生成的地址,? 一行代码就搞定这个人性化功能。
源文出自: http://www.itkuaixun.com/news/article/46171.html
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