转：使用PHP创建ZIP格式的下载压缩包

HTML代码

表单包含可下载的列表文件，其输入类型是复选框，复选框name为files[]。（注意是数组形式）

<form name="zips" method="post">

<input type="checkbox" name="files[]" value="flowers.jpg" />
<img src="files/image.png" />
flowers.jpg

<input type="checkbox" name="files[]" value="fun.jpg" />
<img src="files/image.png" />
fun.jpg

<input type="checkbox" name="files[]" value="9lessons.docx" />
<img src="files/doc.png"   />
9lessons.docx
........
<input type="submit" name="createpdf" value="Download as ZIP" />&nbsp;
<input type="reset" name="reset"  value="Reset" />
</form>

PHP实现ZIP压缩的处理代码

在这里包含了将文件转换为ZIP格式的PHP代码。

<?php
$error = ""; //error holder
if(isset($_POST['createpdf']))
{
$post = $_POST;
$file_folder = "files/"; // folder to load files
if(extension_loaded('zip'))
{
// Checking ZIP extension is available
if(isset($post['files']) and count($post['files']) > 0)
{
// Checking files are selected
$zip = new ZipArchive(); // Load zip library
$zip_name = time().".zip"; // Zip name
if($zip->open($zip_name, ZIPARCHIVE::CREATE)!==TRUE)
{
 // Opening zip file to load files
$error .= "* Sorry ZIP creation failed at this time";
}
foreach($post['files'] as $file)
{
$zip->addFile($file_folder.$file); // Adding files into zip
}
$zip->close();
if(file_exists($zip_name))
{
// push to download the zip
header('Content-type: application/zip');
header('Content-Disposition: attachment; filename="'.$zip_name.'"');
readfile($zip_name);
// remove zip file is exists in temp path
unlink($zip_name);
}

}
else
$error .= "* Please select file to zip ";
}
else
$error .= "* You dont have ZIP extension";
}
?>