PHP下载压缩包文件

$zip = new ZipArchive();// 打开一个zip文档，ZipArchive::OVERWRITE：如果存在这样的文档，则覆盖；ZipArchive::CREATE：如果不存在，则创建$res = $zip->open(‘test.zip‘, ZipArchive::OVERWRITE | ZipArchive::CREATE);if($res){ ???// 添加 a.txt 到压缩文档 ???$zip->addFile(‘a.txt‘); ???// 添加一个字符串到压缩文档中的b.txt ???$zip->addFromString(‘b.txt‘, ‘this is b.txt‘); ???// 添加一个空目录b到压缩文档 ???$zip->addEmptyDir(‘b‘);}// 关闭打开的压缩文档$zip->close();

 1 /** 2 ?* @param $dir 目标目录路径 3 ?* @param $zip ZipArchive类对象 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 . ‘/‘ . $basename);20 ????????????}21 ????????}else22 ????????{23 ????????????$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 }

$zip = new ZipArchive();$res = $zip->open(‘test1.zip‘);if($res){ ???// 解压缩文件到指定目录 ???$zip->extractTo(‘test‘); ???$zip->close();}

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‘);