php打包网站并在线压缩为zip

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本文实例介绍了PHP打包网站并在线压缩为zip的方法分享给大家供大家参考,具体内容如下

PHP;">  <a href="/tag/PHP/" target="_blank" class="keywords">PHP</a> ZIP压缩程序
文件程序

使用方法:选定要压缩的文件或目录(包含子目录),即可开始压缩。压缩的结果保留原来的目录结构。
PHP if(isset($_REQUEST['pwd']) && md5($_REQUEST['pwd']) == $password) echo '当前目录:'. dirname(__FILE__) . ''; else if(isset($_GET['pwd']) ) echo '密码值:'. md5($_GET['pwd']) . ''; else echo 'Tips:在URL后参加?pwd=密码 查看生成密码.'; ?>

elseif($_REQUEST["myaction"]=="dolist"):

if(!isset($_REQUEST['pwd']) || empty($_REQUEST['pwd']) )
die('请输入密码! <a href="'. $_SERVER['PHP_SELF']. '">Again');
if(md5($_REQUEST['pwd']) != $password)
die('输入的密码不正确!<a href="'. $_SERVER['PHP_SELF']. '">Again');
echo '选择要排除的目录(相对路径,以英文半角逗号分隔):
';
echo '
';
echo "选择要压缩的文件或目录:
";
$fdir = opendir('./');
while($file=readdir($fdir)){
if($file=='.'|| $file=='..' ) continue;
echo "<input name='dfile[]' type='checkbox' value='$file' ".($file==basename(FILE)?"":"checked")."> ";
if(is_file($file)){
echo "文件: $file
";
}else{
echo "目录: $file
";
}
}
?>


压缩文件保存到目录:
<input name="todir" type="text" id="todir" value="zipfiles<?php echo substr(md5(time()),8);?>" size="20">
(留空为本目录,必须有写入权限)

压缩文件名称:
<input name="zipname" type="text" id="zipname" value="backup_<?php echo substr(md5(FILE),8);?>.zip" size="15">
(.zip)



<input name="pwd" type="hidden" id="password" value="<?php echo $_POST['pwd'];?>">
<input name="myaction" type="hidden" id="myaction" value="dozip">

function selrev() { with(document.getElementById('myform')){ for(i=0;i elseif($_REQUEST["myaction"]=="dozip"):

// set_time_limit(0);

class PHPzip{

var $file_count = 0 ;
var $datastr_len = 0;
var $dirstr_len = 0;
var $filedata = ''; //该变量只被类外部程序访问
var $gzfilename;
var $fp;
var $dirstr='';
/
返回文件的修改时间格式.
只为本类内部函数调用.
/
function unix2DosTime($unixtime = 0) {
$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);

  1. if ($timearray['year'] < 1980) {
  2. $timearray['year'] = 1980;
  3. $timearray['mon'] = 1;
  4. $timearray['mday'] = 1;
  5. $timearray['hours'] = 0;
  6. $timearray['minutes'] = 0;
  7. $timearray['seconds'] = 0;
  8. }
  9. return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
  10. ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);

}

/
初始化文件,建立文件目录,并返回文件的写入权限.
/
function startfile($path = 'myzip.zip'){
$this->gzfilename=$path;
$mypathdir=array();
do{
$mypathdir[] = $path = dirname($path);
}while($path != '.');
@end($mypathdir);
do{
$path = @current($mypathdir);
@mkdir($path);
}while(@prev($mypathdir));

  1. if($this->fp=@fopen($this->gzfilename,"w")){
  2. return true;
  3. }
  4. return false;

}

/
添加一个文件到 zip 压缩包中.
/
function addfile($data,$name){
$name = str_replace('\','/',$name);

  1. if(strrchr($name,'/')=='/') return $this->adddir($name);
  2. $dtime = dechex($this->unix2DosTime());
  3. $hexdtime = '\x' . $dtime[6] . $dtime[7]
  4. . '\x' . $dtime[4] . $dtime[5]
  5. . '\x' . $dtime[2] . $dtime[3]
  6. . '\x' . $dtime[0] . $dtime[1];
  7. eval('$hexdtime = "' . $hexdtime . '";');
  8. $unc_len = strlen($data);
  9. $crc = crc32($data);
  10. $zdata = gzcompress($data);
  11. $c_len = strlen($zdata);
  12. $zdata = substr(substr($zdata,strlen($zdata) - 4),2);
  13. //新添文件内容格式化:
  14. $datastr = "\x50\x4b\x03\x04";
  15. $datastr .= "\x14\x00"; // ver needed to extract
  16. $datastr .= "\x00\x00"; // gen purpose bit flag
  17. $datastr .= "\x08\x00"; // compression method
  18. $datastr .= $hexdtime; // last mod time and date
  19. $datastr .= pack('V',$crc); // crc32
  20. $datastr .= pack('V',$c_len); // compressed filesize
  21. $datastr .= pack('V',$unc_len); // uncompressed filesize
  22. $datastr .= pack('v',strlen($name)); // length of filename
  23. $datastr .= pack('v',0); // extra field length
  24. $datastr .= $name;
  25. $datastr .= $zdata;
  26. $datastr .= pack('V',$crc); // crc32
  27. $datastr .= pack('V',$c_len); // compressed filesize
  28. $datastr .= pack('V',$unc_len); // uncompressed filesize
  29. fwrite($this->fp,$datastr); //写入新的文件内容
  30. $my_datastr_len = strlen($datastr);
  31. unset($datastr);
  32. //新添文件目录信息
  33. $dirstr = "\x50\x4b\x01\x02";
  34. $dirstr .= "\x00\x00"; // version made by
  35. $dirstr .= "\x14\x00"; // version needed to extract
  36. $dirstr .= "\x00\x00"; // gen purpose bit flag
  37. $dirstr .= "\x08\x00"; // compression method
  38. $dirstr .= $hexdtime; // last mod time & date
  39. $dirstr .= pack('V',$crc); // crc32
  40. $dirstr .= pack('V',$c_len); // compressed filesize
  41. $dirstr .= pack('V',$unc_len); // uncompressed filesize
  42. $dirstr .= pack('v',strlen($name) ); // length of filename
  43. $dirstr .= pack('v',0 ); // extra field length
  44. $dirstr .= pack('v',0 ); // file comment length
  45. $dirstr .= pack('v',0 ); // disk number start
  46. $dirstr .= pack('v',0 ); // internal file attributes
  47. $dirstr .= pack('V',32 ); // external file attributes - 'archive' bit set
  48. $dirstr .= pack('V',$this->datastr_len ); // relative offset of local header
  49. $dirstr .= $name;
  50. $this->dirstr .= $dirstr; //目录信息
  51. $this -> file_count ++;
  52. $this -> dirstr_len += strlen($dirstr);
  53. $this -> datastr_len += $my_datastr_len;

}

function adddir($name){
$name = str_replace("\","/",$name);
$datastr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";

  1. $datastr .= pack("V",0).pack("V",0).pack("v",strlen($name) );
  2. $datastr .= pack("v",0 ).$name.pack("V",0);
  3. fwrite($this->fp,$datastr); //写入新的文件内容
  4. $my_datastr_len = strlen($datastr);
  5. unset($datastr);
  6. $dirstr = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";
  7. $dirstr .= pack("V",strlen($name) );
  8. $dirstr .= pack("v",0 ).pack("v",0 );
  9. $dirstr .= pack("V",16 ).pack("V",$this->datastr_len).$name;
  10. $this->dirstr .= $dirstr; //目录信息
  11. $this -> file_count ++;
  12. $this -> dirstr_len += strlen($dirstr);
  13. $this -> datastr_len += $my_datastr_len;

}

function createfile(){
//压缩包结束信息,包括文件总数,目录信息读取指针位置等信息
$endstr = "\x50\x4b\x05\x06\x00\x00\x00\x00" .
pack('v',$this -> file_count) .
pack('v',$this -> file_count) .
pack('V',$this -> dirstr_len) .
pack('V',$this -> datastr_len) .
"\x00\x00";

  1. fwrite($this->fp,$this->dirstr.$endstr);
  2. fclose($this->fp);

}
}

if(!trim($_REQUEST['zipname']))
$REQUEST['zipname'] = 'backup'.substr(md5(FILE),8). '.zip';
else
$_REQUEST['zipname'] = trim($_REQUEST['zipname']);
if(!strrchr(strtolower($_REQUEST['zipname']),'.')=='.zip')
$_REQUEST['zipname'] .= ".zip";
$_REQUEST['todir'] = str_replace('\',trim($_REQUEST['todir']));
if(!strrchr(strtolower($_REQUEST['todir']),'/')=='/')
$_REQUEST['todir'] .= "/";
if($_REQUEST['todir']=="/")
$_REQUEST['todir'] = "./";

function listfiles($dir="."){
global $faisunZIP;
$sub_file_num = 0;

  1. if(is_file($dir)){
  2. if(realpath($faisunZIP->gzfilename)!=realpath($dir)){
  3. $faisunZIP -> addfile(implode('',file($dir)),$dir);
  4. return 1;
  5. }
  6. return 0;
  7. }
  8. $handle=opendir($dir);
  9. //添加排除
  10. $to_exlude = !empty($_POST['toexlude']) ? $_POST['toexlude'] :'';
  11. $exlude = empty($to_exlude) ? array() : explode(',',$to_exlude);
  12. while ($file = readdir($handle)) {
  13. if($file=="."||$file==".." || $file == 'wp-content' )continue;
  14. if(is_dir("$dir/$file") && !in_array("$dir/$file",$exlude) )
  15. {
  16. $sub_file_num += listfiles("$dir/$file");
  17. }
  18. else {
  19. if(realpath($faisunZIP ->gzfilename)!=realpath("$dir/$file")){
  20. $faisunZIP -> addfile(implode('',file("$dir/$file")),"$dir/$file");
  21. $sub_file_num ++;
  22. }
  23. }
  24. }
  25. closedir($handle);
  26. if(!$sub_file_num) $faisunZIP -> addfile("","$dir/");
  27. return $sub_file_num;

}

function num_bitunit($num){
$bitunit=array(' B',' KB',' MB',' GB');
for($key=0;$key<count($bitunit);$key++){
if($num>=pow(2,10$key)-1){ //1023B 会显示为 1KB
$num_bitunit_str=(ceil($num/pow(2,10
$key)*100)/100)." $bitunit[$key]";
}
}
return $num_bitunit_str;
}

if(is_array($_REQUEST['dfile'])){
$faisunZIP = new PHPzip;
if($faisunZIP -> startfile($_REQUEST['todir'].$_REQUEST['zipname'])){
echo "正在添加压缩文件...

";
$filenum = 0;
foreach($_REQUEST['dfile'] as $file){
if(is_file($file)){
echo "文件: $file
";
}else{
echo "目录: $file
";
}
$filenum += listfiles($file);
}
$faisunZIP -> createfile();
echo "
压缩完成,共添加 $filenum 个文件.
<a href='" .$_REQUEST['todir'].$_REQUEST['zipname']. "'>". $_REQUEST['todir'].$_REQUEST['zipname']." (".num_bitunit(filesize("$_REQUEST[todir]$_REQUEST[zipname]")).")";
}else{
echo $_REQUEST['todir'].$_REQUEST['zipname'].'不能写入,请检查路径或权限是否正确.
';
}
}else{
echo "没有选择的
文件或目录.
";
}

endif;

?>

以上就是本文的全部内容,希望对大家的学习有所帮助。

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