首页 » 后端 » PHP » 正文

php版zip文件解压工具

发布者:站点默认
2011/03/5 浏览数(2,180) 分类:PHP php版zip文件解压工具已关闭评论

说明:

做WEB时用FTP上传零碎的文件会比较费时间,但上传打包后的单个文件会很快,在上传之后可以使用此程序将zip文件解压。代码参考了纯粹空间的“faisun_unzip -在线解压ZIP文件程序 V1.0”,略有修改。

用法:

第一步:制作zip.php文件。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
<?php
include('zip.class.php');
if (empty($_GET['f'])){
  echo 'Usage: ?f=file.zip&d=directory';
}else{
  $file = $_GET['f'];
  $directory = $_GET['d']; // zip.class.php会处理这块数据
  if(preg_match('/\.zip$/mis',$file)){
    $z = new zip();
    $result=$z->extract($file,$directory);
    if($result==-1){
      echo "<br>File: [$file] error.";
    }
    echo "<br>Done. Folders: $z->totalFolders , Files: $z->totalFiles .";
  }else{
    echo "<br>Wrong file format.";     
  }
}
?>

第二步:上传后解压。

1
2
http://domain/zip.php?f=archive.zip&d=web
#参数“f”是上传的包,“d”是解压到的目录(同级目录)。

下载:

zip.class.php.tar.gz

代码:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
<?php
class zip {
  public $totalFiles = 0;
  public $totalFolders = 0;
   
  function extract ($zn, $to = './', $index = Array(-1)) {
    $ok = 0;
    $zip = @fopen($zn, 'rb');
    if(!$zip) return(-1);
    $cdir = $this->readCentralDir($zip, $zn);
    $posEntry = $cdir['offset'];
     
    if(!is_array($index)){
      $index = array($index);
    }
    for($i = 0; $index[$i];$i++){
      if(intval($index[$i]) != $index[$i] || $index[$i] > $cdir['entries'])
        return(-1);
      }
    for ($i = 0; $i < $cdir['entries']; $i++) {
      @fseek($zip, $posEntry);
      $header = $this->readCentralFileHeaders($zip);
      $header['index'] = $i;
      $posEntry = ftell($zip);
      @rewind($zip);
      fseek($zip, $header['offset']);
      if(in_array("-1", $index) || in_array($i, $index))
        $stat[$header['filename']] = $this->extractFile($header, $to, $zip);
      }
    fclose($zip);
    return $stat;
    }
   
  function readFileHeader($zip) {
    $binaryData = fread($zip, 30);
    $data = unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len', $binaryData);
     
    $header['filename'] = fread($zip, $data['filename_len']);
    if ($data['extra_len'] != 0){
      $header['extra'] = fread($zip, $data['extra_len']);
      }else{
      $header['extra'] = '';
    }
    $header['compression'] = $data['compression'];
    $header['size'] = $data['size'];
    $header['compressed_size'] = $data['compressed_size'];
    $header['crc'] = $data['crc'];
    $header['flag'] = $data['flag'];
    $header['mdate'] = $data['mdate'];
    $header['mtime'] = $data['mtime'];
     
    if ($header['mdate'] && $header['mtime']){
      $hour = ($header['mtime'] & 0xF800) >> 11;
      $minute = ($header['mtime'] & 0x07E0) >> 5;
      $seconde = ($header['mtime'] & 0x001F) * 2;
      $year = (($header['mdate'] & 0xFE00) >> 9) + 1980;
      $month = ($header['mdate'] & 0x01E0) >> 5;
      $day = $header['mdate'] & 0x001F;
      $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
      }else{
      $header['mtime'] = time();
    }
    $header['stored_filename'] = $header['filename'];
    $header['status'] = "ok";
    return $header;
  }
   
  function readCentralFileHeaders($zip){
    $binaryData = fread($zip, 46);
    $header = unpack('vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset', $binaryData);
     
    if ($header['filename_len'] != 0)
      $header['filename'] = fread($zip, $header['filename_len']);
    else $header['filename'] = '';
     
    if ($header['extra_len'] != 0)
      $header['extra'] = fread($zip, $header['extra_len']);
    else $header['extra'] = '';
     
    if ($header['comment_len'] != 0)
      $header['comment'] = fread($zip, $header['comment_len']);
    else $header['comment'] = '';
     
    if ($header['mdate'] && $header['mtime']) {
      $hour = ($header['mtime'] & 0xF800) >> 11;
      $minute = ($header['mtime'] & 0x07E0) >> 5;
      $seconde = ($header['mtime'] & 0x001F) * 2;
      $year = (($header['mdate'] & 0xFE00) >> 9) + 1980;
      $month = ($header['mdate'] & 0x01E0) >> 5;
      $day = $header['mdate'] & 0x001F;
      $header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
      }else{
      $header['mtime'] = time();
    }
    $header['stored_filename'] = $header['filename'];
    $header['status'] = 'ok';
    if (substr($header['filename'], -1) == '/')
      $header['external'] = 0x41FF0010;
      return $header;
    }
   
  function readCentralDir($zip, $zip_name){
    $size = filesize($zip_name);
    if ($size < 277) $maximum_size = $size;
    else $maximum_size = 277;
     
    @fseek($zip, $size - $maximum_size);
    $pos = ftell($zip);
    $bytes = 0x00000000;
    while ($pos < $size){
      $byte = @fread($zip, 1);
      $bytes = ($bytes << 8) | ord($byte);
      if ($bytes == 0x504b0506 or $bytes == 0x2e706870504b0506){
        $pos++;
        break;
      }
      $pos++;
    }
     
    $fdata = fread($zip, 18);
     
    $data = @unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size', $fdata);
     
    if ($data['comment_size'] != 0) $centd['comment'] = fread($zip, $data['comment_size']);
    else $centd['comment'] = '';
    $centd['entries'] = $data['entries'];
    $centd['disk_entries'] = $data['disk_entries'];
    $centd['offset'] = $data['offset'];
    $centd['disk_start'] = $data['disk_start'];
    $centd['size'] = $data['size'];
    $centd['disk'] = $data['disk'];
    return $centd;
  }
   
  function extractFile($header, $to, $zip){
    $header = $this->readFileHeader($zip);
    # 创建目录
    if (!file_exists($to)){
      @mkdir($to);
    }else if(file_exists($to) && !is_dir($to)){
      @rename($to, $to . '_bak_by_zip');
      @mkdir($to);
    }
    if(substr($to, -1) != "/") $to .= "/";
    if($to == './') $to = '';
    $pth = explode("/", $to . $header['filename']);
    $mydir = '';
    for($i = 0;$i < count($pth)-1;$i++){
      if(!$pth[$i]) continue;
      $mydir .= $pth[$i] . "/";
      if((!is_dir($mydir) && @mkdir($mydir, 0777)) || (($mydir == $to . $header['filename'] || ($mydir == $to && $this->totalFolders == 0)) && is_dir($mydir))){
        @chmod($mydir, 0777);
        $this->totalFolders ++;
        echo "[d] <a href='$mydir' target='_blank'>$mydir</a><br>";
      }
    }
     
    if(strrchr($header['filename'], '/') == '/') return;
     
    if (!($header['external'] == 0x41FF0010) && !($header['external'] == 16)){
      if ($header['compression'] == 0){
        $fp = @fopen($to . $header['filename'], 'wb');
        if(!$fp) return(-1);
        $size = $header['compressed_size'];
         
        while ($size != 0){
          $readSize = ($size < 2048 ? $size : 2048);
          $buffer = fread($zip, $readSize);
          $binaryData = pack('a' . $readSize, $buffer);
          @fwrite($fp, $binaryData, $readSize);
          $size -= $readSize;
        }
        fclose($fp);
        touch($to . $header['filename'], $header['mtime']);
        }else{
        $fp = @fopen($to . $header['filename'] . '.gz', 'wb');
        if(!$fp) return(-1);
        $binaryData = pack('va1a1Va1a1', 0x8b1f, Chr($header['compression']),
          Chr(0x00), time(), Chr(0x00), Chr(3));
         
        fwrite($fp, $binaryData, 10);
        $size = $header['compressed_size'];
         
        while ($size != 0){
          $readSize = ($size < 1024 ? $size : 1024);
          $buffer = fread($zip, $readSize);
          $binaryData = pack('a' . $readSize, $buffer);
          @fwrite($fp, $binaryData, $readSize);
          $size -= $readSize;
        }
         
        $binaryData = pack('VV', $header['crc'], $header['size']);
        fwrite($fp, $binaryData, 8);
        fclose($fp);
         
        $gzp = @gzopen($to . $header['filename'] . '.gz', 'rb') or die("Cette archive est compress閑");
        if(!$gzp) return(-2);
        $fp = @fopen($to . $header['filename'], 'wb');
        if(!$fp) return(-1);
        $size = $header['size'];
         
        while ($size != 0){
          $readSize = ($size < 2048 ? $size : 2048);
          $buffer = gzread($gzp, $readSize);
          $binaryData = pack('a' . $readSize, $buffer);
          @fwrite($fp, $binaryData, $readSize);
          $size -= $readSize;
        }
        fclose($fp);
        gzclose($gzp);
         
        touch($to . $header['filename'], $header['mtime']);
        @unlink($to . $header['filename'] . '.gz');
         
      }
    }
     
    $this->totalFiles ++;
    echo "[-] <a href='$to$header[filename]' target='_blank'>$to$header[filename]</a><br>";
     
    return true;
  }
}
?>

<完>

点击返回顶部
  1. 留言
  2. 联系方式
Loading...