复制代码 代码如下:

require_once \"./include/zip.php\";
$zip = new PHPZip();
//$zip -> createZip(\"要压缩的文件夹目录地址\", \"压缩后的文件名.zip\");　　 //只生成不自动下载
$zip -> downloadZip(\"要压缩的文件夹目录地址\", \"压缩后的文件名.zip\");　　//自动下载

复制代码 代码如下:

require_once \"./include/zip.php\";
if (!$download) {
exit();
}
set_time_limit(60);
$tmpManager = new TmpManager(); //假设我们有一个类来完成后面的操作
$tempfolder = array();
$tempfile = array();
//假设我们是通过在页面上选择checkbox来下载已选的文件夹或文件，并一同打包
for($i = 0;$i < $checkboxnum;$i++) {
$value = ${\"select\".$i};
if ($value != \'\') {
$this_type = substr($value, 0, 1);
$this_id = substr($value, 1);
//将文件夹和文件的情况分开处理
if ($this_type == \'d\') {
$tempfolder[] = $this_id;
}
elseif ($this_type == \'f\') {
$tempfile[] = $this_id;
}
}
}
@mkdir($tempdir);
$curtempdir = \"$tempdir/\".$userid; //不同用户在不同的临时文件夹下操作
if (file_exists($curtempdir)) {
$tmpManager->DeleteDir($curtempdir); //删除旧的文件夹
}
if (sizeof($tempfolder) > 0 || sizeof($tempfile) > 0) {
mkdir($curtempdir, 0777); //如果有要打包的文件货文件夹，重新创建文件夹
}
if (sizeof($tempfile) > 0) {
$tmpManager->CopyFile($tempfile,$curtempdir); //将要下载的文件copy到创建的文件夹
}
if (sizeof($tempfolder) > 0) {
$tmpManager->CopyFolder($tempfolder,$curtempdir); //将要下载的文件夹copy到创建的文件夹
}
$zip = new PHPZip();
$zip -> downloadZip($curtempdir, \"file_\".date(\'Ymd\').\".zip\"); //打包并下载

复制代码 代码如下:

<?php
/*
File name: /include/zip.php
Author: Horace 2009/04/15
*/
class PHPZip{
var $dirInfo = array(\"0\",\"0\");
var $rootDir = \'\';
var $datasec = array();
var $ctrl_dir = array();
var $eof_ctrl_dir = \"/x50/x4b/x05/x06/x00/x00/x00/x00\";
var $old_offset = 0;
function downloadZip(){
createZip($dir, $zipfilename, true);
}
function createZip($dir, $zipfilename, $autoDownload = false){
if (@function_exists(\'gzcompress\')){
@set_time_limit(\"0\");
if (is_array($dir)){
$fd = fopen ($dir, \"r\");
$fileValue = fread ($fd, filesize ($filename));
fclose ($fd);
if (is_array($dir)) $filename = basename($dir);
$this -> addFile($fileValue, \"$filename\");
}else{
$this->dirTree($dir,$dir);
}
$zipfilenametemp = time().$zipfilename;
$out = $this -> filezip();
$fp = fopen($zipfilenametemp, \"w\");
fwrite($fp, $out, strlen($out));
fclose($fp);
$filesize = filesize($zipfilenametemp);
if ($filesize < 104857600) {
if($autoDownload){
header(\"Content-type: application/octet-stream\");
header(\"Content-disposition: attachment; filename=\".$zipfilename);
}
echo $this -> filezip();
}else{
echo \"create zip error!\";
}
unlink($zipfilenametemp);
}
}
//get dir tree..
function dirTree($directory,$rootDir){
global $_SERVER,$dirInfo,$rootDir;
$fileDir=$rootDir;
$myDir=dir($directory);
while($file=$myDir->read()){
if(is_dir(\"$directory/$file\") and $file!=\".\" and $file!=\"..\"){
$dirInfo[0]++;
$rootDir =\"$fileDir$file/\";
$this -> addFile(\'\', \"$rootDir\");
//go on n\'s folders
$this->dirTree(\"$directory/$file\",$rootDir);
}else{
if($file!=\".\" and $file!=\"..\"){
$dirInfo[1]++;
//$fd = fopen (\"$directory/$file\", \"r\");
$fileValue = file_get_contents(\"$directory/$file\");
//fclose ($fd);
$this -> addFile($fileValue, \"$fileDir$file\");
}
}
}
$myDir->close();
}
function unix2DosTime($unixtime = 0) {
$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
if ($timearray[\'year\'] < 1980) {
$timearray[\'year\'] = 1980;
$timearray[\'mon\'] = 1;
$timearray[\'mday\'] = 1;
$timearray[\'hours\'] = 0;
$timearray[\'minutes\'] = 0;
$timearray[\'seconds\'] = 0;
} // end if
return (($timearray[\'year\'] - 1980) << 25) | ($timearray[\'mon\'] << 21) | ($timearray[\'mday\'] << 16) |
($timearray[\'hours\'] << 11) | ($timearray[\'minutes\'] << 5) | ($timearray[\'seconds\'] >> 1);
}
function addFile($data, $name, $time = 0){
$name = str_replace(\'//\', \'/\', $name);
$dtime = dechex($this->unix2DosTime($time));
$hexdtime = \'/x\' . $dtime[6] . $dtime[7]
. \'/x\' . $dtime[4] . $dtime[5]
. \'/x\' . $dtime[2] . $dtime[3]
. \'/x\' . $dtime[0] . $dtime[1];
eval(\'$hexdtime = \"\' . $hexdtime . \'\";\');
$fr = \"/x50/x4b/x03/x04\";
$fr .= \"/x14/x00\"; // ver needed to extract
$fr .= \"/x00/x00\"; // gen purpose bit flag
$fr .= \"/x08/x00\"; // compression method
$fr .= $hexdtime; // last mod time and date
// \"local file header\" segment
$unc_len = strlen($data);
$crc = crc32($data);
$zdata = gzcompress($data);
$c_len = strlen($zdata);
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
$fr .= pack(\'V\', $crc); // crc32
$fr .= pack(\'V\', $c_len); // compressed filesize
$fr .= pack(\'V\', $unc_len); // uncompressed filesize
$fr .= pack(\'v\', strlen($name)); // length of filename
$fr .= pack(\'v\', 0); // extra field length
$fr .= $name;
// \"file data\" segment
$fr .= $zdata;
// \"data descriptor\" segment (optional but necessary if archive is not
// served as file)
$fr .= pack(\'V\', $crc); // crc32
$fr .= pack(\'V\', $c_len); // compressed filesize
$fr .= pack(\'V\', $unc_len); // uncompressed filesize
// add this entry to array
$this -> datasec[] = $fr;
$new_offset = strlen(implode(\'\', $this->datasec));
// now add to central directory record
$cdrec = \"/x50/x4b/x01/x02\";
$cdrec .= \"/x00/x00\"; // version made by
$cdrec .= \"/x14/x00\"; // version needed to extract
$cdrec .= \"/x00/x00\"; // gen purpose bit flag
$cdrec .= \"/x08/x00\"; // compression method
$cdrec .= $hexdtime; // last mod time & date
$cdrec .= pack(\'V\', $crc); // crc32
$cdrec .= pack(\'V\', $c_len); // compressed filesize
$cdrec .= pack(\'V\', $unc_len); // uncompressed filesize
$cdrec .= pack(\'v\', strlen($name) ); // length of filename
$cdrec .= pack(\'v\', 0 ); // extra field length
$cdrec .= pack(\'v\', 0 ); // file comment length
$cdrec .= pack(\'v\', 0 ); // disk number start
$cdrec .= pack(\'v\', 0 ); // internal file attributes
$cdrec .= pack(\'V\', 32 ); // external file attributes - \'archive\' bit set
$cdrec .= pack(\'V\', $this -> old_offset ); // relative offset of local header
$this -> old_offset = $new_offset;
$cdrec .= $name;
// optional extra field, file comment goes here
// save to central directory
$this -> ctrl_dir[] = $cdrec;
}
function filezip(){
$data = implode(\'\', $this -> datasec);
$ctrldir = implode(\'\', $this -> ctrl_dir);
return
$data .
$ctrldir .
$this -> eof_ctrl_dir .
pack(\'v\', sizeof($this -> ctrl_dir)) . // total # of entries \"on this disk\"
pack(\'v\', sizeof($this -> ctrl_dir)) . // total # of entries overall
pack(\'V\', strlen($ctrldir)) . // size of central dir
pack(\'V\', strlen($data)) . // offset to start of central dir
\"/x00/x00\"; // .zip file comment length
}
}
?>