PHP下載壓縮包文件

壓縮文件

$zip = new ZipArchive();
// 打開一個zip文檔，ZipArchive::OVERWRITE：如果存在這樣的文檔，則覆蓋；ZipArchive::CREATE：如果不存在，則創建
$res = $zip->open('test.zip', ZipArchive::OVERWRITE | ZipArchive::CREATE);
if($res)
{
    // 添加 a.txt 到壓縮文檔
    $zip->addFile('a.txt');
    // 添加一個字符串到壓縮文檔中的b.txt
    $zip->addFromString('b.txt', 'this is b.txt');
    // 添加一個空目錄b到壓縮文檔
    $zip->addEmptyDir('b');
}
// 關閉打開的壓縮文檔
$zip->close();

壓縮目錄

 1 /**
 2  * @param $dir 目標目錄路徑
 3  * @param $zip ZipArchive類對象
 4  * @param $prev
 5  */
 6 function compressDir($dir, $zip, $prev='.')
 7 {
 8     $handler = opendir($dir);
 9     $basename = basename($dir);
10     $zip->addEmptyDir($prev . '/' . $basename);
11     while($file = readdir($handler))
12     {
13         $realpath = $dir . '/' . $file;
14         if(is_dir($realpath))
15         {
16             if($file !== '.' && $file !== '..')
17             {
18                 $zip->addEmptyDir($prev . '/' . $basename . '/' . $file);
19                 compressDir($realpath, $zip, $prev . '/' . $basename);
20             }
21         }else
22         {
23             $zip->addFile($realpath, $prev. '/' . $basename . '/' . $file);
24         }
25     }
26 
27     closedir($handler);
28     return null;
29 }
30 
31 $zip = new ZipArchive();
32 $res = $zip->open('test.zip', ZipArchive::OVERWRITE | ZipArchive::CREATE);
33 if($res)
34 {
35     compressDir('./test', $zip);
36     $zip->close();
37 }

解壓縮

$zip = new ZipArchive();
$res = $zip->open('test1.zip');
if($res)
{
    // 解壓縮文件到指定目錄
    $zip->extractTo('test');
    $zip->close();
}

下載壓縮包

header('Content-Type:text/html;charset=utf-8');
header('Content-disposition:attachment;filename=test.zip');
$filesize = filesize('./test.zip');
readfile('./test.zip');
header('Content-length:'.$filesize);

unlink('./test.zip');