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php文件下载处理方法分析_php技巧

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May 16, 2016 pm 08:16 PM

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本文实例讲述了php文件下载的处理方法。分享给大家供大家参考。具体分析如下：

php能够处理多种条件的文件下载，先来看下面示例：

<&#63;php
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=testname.jpg"); 
readfile("images/test.jpg");
&#63;>

分析上述代码：

第一行代码是强制下载；
第二行代码是给下载的内容指定一个名字；
第三行代码是把下载的内容读进文件中。

一直以为要在一个页面中同时下载多个文件是不可能的，因为php第一次header发送下载信息之后就不能再发送了。
今天总算知道了一种解决方案，使用iframe来实现。

<iframe src="1.zip" style="border-style:none;width:0;height:0;">
</iframe>
<iframe src="2.zip" style="border-style:none;width:0;height:0;">
</iframe>

也可以用js生成iframe

希望本文所述对大家的php程序设计有所帮助。

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