PHP Operations zip_php Tutorial

Class Phpzip

{

Private $ctrl _dir = Array ();

Private $datasec = Array ();




/**********************************************************

*ѹ

**********************************************************/

// ------------------------------------------------------ //

#ָļ

//

$archive = new Phpzip ();

$filelist = $archive->visitfile (ļ);

Print "ǰļеļ:

\ r \ n ";

foreach ($filelist as $file)

printf ("%s
\ r \ n ", $file);

// ------------------------------------------------------ //

var $fileList = array ();

Public Function Visitfile ($path)

{

Global $fileList;

$path = str_replace ("\ \", "/", $path);

$fdir = Dir ($path);


while (($file = $fdir->read ())!== false)
{

if ($file = = '. ' | | $file = = ' ... ') {continue;}



$pathSub = Preg_replace ("*/{2,}*", "/", $path. " /". $file); 滻 Bldg

$fileList [] = Is_dir ($pathSub)? $pathSub. " /": $pathSub;

if (Is_dir ($pathSub)) {$this->visitfile ($pathSub);}
}
$fdir->close ();

return $fileList;

}




Private 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;
}

Return (($timearray [' Year ']-1980) << 25)

| ($timearray [' mon '] << 21)

| ($timearray [' Mday '] << 16)
| ($timearray [' hours '] << 11)

| ($timearray [' minutes '] << 5)

| ($timearray [' seconds '] >> 1);

}





var $old _offset = 0;

Private Function AddFile ($data, $filename, $time = 0)
{

$filename = str_replace (' \ \ ', '/', $filename);



$dtime = Dechex ($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";

$fr. = "\x00\x00";

$fr. = "\x08\x00";

$fr. = $hexdtime;

$unc _len = strlen ($data);

$CRC = CRC32 ($data);

$zdata = gzcompress ($data);

$c _len = strlen ($zdata);

$zdata = substr (substr ($zdata, 0, strlen ($zdata)-4), 2);

$fr. = Pack (' V ', $CRC);

$fr. = Pack (' V ', $c _len);

$fr. = Pack (' V ', $unc _len);

$fr. = Pack (' V ', strlen ($filename));

$fr. = Pack (' V ', 0);

$fr. = $filename;



$fr. = $zdata;



$fr. = Pack (' V ', $CRC);

$fr. = Pack (' V ', $c _len);

$fr. = Pack (' V ', $unc _len);



$this->datasec[] = $FR;

$new _offset = strlen (Implode (", $this->datasec));


$cdrec = "\x50\x4b\x01\x02";

$cdrec. = "\x00\x00";

$cdrec. = "\x14\x00";

$cdrec. = "\x00\x00";

$cdrec. = "\x08\x00";

$cdrec. = $hexdtime;

$cdrec. = Pack (' V ', $CRC);

$cdrec. = Pack (' V ', $c _len);

$cdrec. = Pack (' V ', $unc _len);

$cdrec. = Pack (' V ', strlen ($filename));

$cdrec. = Pack (' V ', 0);

$cdrec. = Pack (' V ', 0);

$cdrec. = Pack (' V ', 0);

$cdrec. = Pack (' V ', 0);

$cdrec. = Pack (' V ', 32);



$cdrec. = Pack (' V ', $this->old_offset);

$this->old_offset = $new _offset;



$cdrec. = $filename;

$this->ctrl_dir[] = $cdrec;

}





var $eof _ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";

Private Function file ()

{

$data = Implode (' ', $this->datasec);

$ctrldir = Implode (' ', $this->ctrl_dir);


Return $data

. $ctrldir

. $this->eof_ctrl_dir

. Pack (' V ', sizeof ($this->ctrl_dir))

. Pack (' V ', sizeof ($this->ctrl_dir))

. Pack (' V ', strlen ($ctrldir))

. Pack (' V ', strlen ($data))

. "\x00\x00";

}





// ------------------------------------------------------ //

#ѹ

//

$archive = new Phpzip ();

$archive->zip ("Ѹļŀ¼", "Zipѹļ");

// ------------------------------------------------------ //

Public Function Zip ($dir, $saveName)

{

if (@!function_exists (' gzcompress ')) {return;}



Ob_end_clean ();

$filelist = $this->visitfile ($dir);

if (count ($filelist) = = 0) {return;}



foreach ($filelist as $file)

{

if (!file_exists ($file) | |!is_file ($file)) {continue;}



$FD = fopen ($file, "RB");

$content = @fread ($FD, FileSize ($file));

Fclose ($FD);



1.ɾ $dir ַ (./folder/file.txtɾ./folder/)

2./ɾ (/file.txtɾ/)

$file = substr ($file, strlen ($dir));

if (substr ($file, 0, 1) = = "\" | | substr ($file, 0, 1) = = "/") {$file = substr ($file, 1);}



$this->addfile ($content, $file);

}

$out = $this->file ();



$fp = fopen ($saveName, "WB");

Fwrite ($fp, $out, strlen ($out));

Fclose ($FP);

}





// ------------------------------------------------------ //

#ѹ ֱ

//

$archive = new Phpzip ();

$archive->zipanddownload ("Ѹļŀ¼");

// ------------------------------------------------------ //

Public Function Zipanddownload ($dir)

{

if (@!function_exists (' gzcompress ')) {return;}



Ob_end_clean ();

$filelist = $this->visitfile ($dir);

if (count ($filelist) = = 0) {return;}



foreach ($filelist as $file)

{

if (!file_exists ($file) | |!is_file ($file)) {continue;}



$FD = fopen ($file, "RB");

$content = @fread ($FD, FileSize ($file));

Fclose ($FD);



1.ɾ $dir ַ (./folder/file.txtɾ./folder/)

2./ɾ (/file.txtɾ/)

$file = substr ($file, strlen ($dir));

if (substr ($file, 0, 1) = = "\" | | substr ($file, 0, 1) = = "/") {$file = substr ($file, 1);}



$this->addfile ($content, $file);

}

$out = $this->file ();



@header (' Content-encoding:none ');

@header (' Content-type:application/zip ');

@header (' content-disposition:attachment; filename=farticle '. Date ("Ymdhis", Time ()). Zip ');

@header (' Pragma:no-cache ');

@header (' expires:0 ');

Print ($out);

}



/**********************************************************

*ѹ

**********************************************************/

// ------------------------------------------------------ //

Readcentraldir ($zip, $zipfile)

$zip ǿ @fopen ($zipfile, ' RB ')





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http://www.bkjia.com/PHPjc/478171.html www.bkjia.com true http://www.bkjia.com/PHPjc/478171.html techarticle PHP class Phpzip {private $ctrl _dir = Array (); Private $datasec = Array ();/**************************************** ****************** * *****************************************...

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