1 //这里需要注意该目录是否存在，并且有创建的权限
2 $zipname = 'path/test.zip'
3 //这是要打包的文件地址数组
4 $files = array("mypath/test1.txt","mypath/test2.pdf");
5 $zip = new ZipArchive();
6 $res = $zip->open($zipname, ZipArchive::CREATE);
7 if ($res === TRUE) {
8 foreach ($files as $file) {
9 //这里直接用原文件的名字进行打包，也可以直接命名，需要注意如果文件名字一样会导致后面文件覆盖前面的文件，所以建议重新命名
10 $new_filename = substr($file, strrpos($file, '/') + 1);
11 $zip->addFile($file, $new_filename);
12 }
13 }
14 //关闭文件
15 $zip->close();
16 //这里是下载zip文件
17 header("Content-Type: application/zip");
18 header("Content-Transfer-Encoding: Binary");
19 header("Content-Length: " . filesize($zipname));
20 header("Content-Disposition: attachment; filename=\"" . basename($zipname) . "\"");
21 readfile($zipname);
22 exit;
1 提供一个zip压缩类：
2
3 <?php
4 #
5 # PHPZip v1.2 by Sext (sext@neud.net) 2002-11-18
6 # (Changed: 2003-03-01)
7 #
8 # Makes zip archive
9 #
10 # Based on "Zip file creation class", uses zLib
11 #
12 #
13 class PHPZip
14 {
15 function Zip($dir, $zipfilename)
16 {
17 if (@function_exists('gzcompress'))
18 {
19 $curdir = getcwd();
20 if (is_array($dir))
21 {
22 $filelist = $dir;
23 }
24 else
25 {
26 $filelist = $this -> GetFileList($dir);
27 }
28 if ((!empty($dir))&&(!is_array($dir))&&(file_exists($dir))) chdir($dir);
29 else chdir($curdir);
30 if (count($filelist)>0)
31 {
32 foreach($filelist as $filename)
33 {
34 if (is_file($filename))
35 {
36 $fd = fopen ($filename, "r");
37 $content = fread ($fd, filesize ($filename));
38 fclose ($fd);
39 if (is_array($dir)) $filename = basename($filename);
40 $this -> addFile($content, $filename);
41 }
42 }
43 $out = $this -> file();
44 chdir($curdir);
45 $fp = fopen($zipfilename, "w");
46 fwrite($fp, $out, strlen($out));
47 fclose($fp);
48 }
49 return 1;
50 }
51 else return 0;
52 }
53 function GetFileList($dir)
54 {
55 if (file_exists($dir))
56 {
57 $args = func_get_args();
58 $pref = $args[1];
59 $dh = opendir($dir);
60 while($files = readdir($dh))
61 {
62 if (($files!=".")&&($files!=".."))
63 {
64 if (is_dir($dir.$files))
65 {
66 $curdir = getcwd();
67 chdir($dir.$files);
68 $file = array_merge($file, $this -> GetFileList("", "$pref$files/"));
69 chdir($curdir);
70 }
71 else $file[]=$pref.$files;
72 }
73 }
74 closedir($dh);
75 }
76 return $file;
77 }
78 var $datasec = array();
79 var $ctrl_dir = array();
80 var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
81 var $old_offset = 0;
82 /**
83 * Converts an Unix timestamp to a four byte DOS date and time format (date
84 * in high two bytes, time in low two bytes allowing magnitude comparison).
85 *
86 * @param integer the current Unix timestamp
87 *
88 * @return integer the current date in a four byte DOS format
89 *
90 * @access private
91 */
92 function unix2DosTime($unixtime = 0) {
93 $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
94 if ($timearray['year'] < 1980) {
95 $timearray['year'] = 1980;
96 $timearray['mon'] = 1;
97 $timearray['mday'] = 1;
98 $timearray['hours'] = 0;
99 $timearray['minutes'] = 0;
100 $timearray['seconds'] = 0;
101 } // end if
102 return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
103 ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
104 } // end of the 'unix2DosTime()' method
105 /**
106 * Adds "file" to archive
107 *
108 * @param string file contents
109 * @param string name of the file in the archive (may contains the path)
110 * @param integer the current timestamp
111 *
112 * @access public
113 */
114 function addFile($data, $name, $time = 0)
115 {
116 $name = str_replace('', '/', $name);
117 $dtime = dechex($this->unix2DosTime($time));
118 $hexdtime = 'x' . $dtime[6] . $dtime[7]
119 . 'x' . $dtime[4] . $dtime[5]
120 . 'x' . $dtime[2] . $dtime[3]
121 . 'x' . $dtime[0] . $dtime[1];
122 eval('$hexdtime = "' . $hexdtime . '";');
123 $fr = "x50x4bx03x04";
124 $fr .= "x14x00"; // ver needed to extract
125 $fr .= "x00x00"; // gen purpose bit flag
126 $fr .= "x08x00"; // compression method
127 $fr .= $hexdtime; // last mod time and date
128 // "local file header" segment
129 $unc_len = strlen($data);
130 $crc = crc32($data);
131 $zdata = gzcompress($data);
132 $c_len = strlen($zdata);
133 $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
134 $fr .= pack('V', $crc); // crc32
135 $fr .= pack('V', $c_len); // compressed filesize
136 $fr .= pack('V', $unc_len); // uncompressed filesize
137 $fr .= pack('v', strlen($name)); // length of filename
138 $fr .= pack('v', 0); // extra field length
139 $fr .= $name;
140 // "file data" segment
141 $fr .= $zdata;
142 // "data descriptor" segment (optional but necessary if archive is not
143 // served as file)
144 $fr .= pack('V', $crc); // crc32
145 $fr .= pack('V', $c_len); // compressed filesize
146 $fr .= pack('V', $unc_len); // uncompressed filesize
147 // add this entry to array
148 $this -> datasec[] = $fr;
149 $new_offset = strlen(implode('', $this->datasec));
150 // now add to central directory record
151 $cdrec = "x50x4bx01x02";
152 $cdrec .= "x00x00"; // version made by
153 $cdrec .= "x14x00"; // version needed to extract
154 $cdrec .= "x00x00"; // gen purpose bit flag
155 $cdrec .= "x08x00"; // compression method
156 $cdrec .= $hexdtime; // last mod time & date
157 $cdrec .= pack('V', $crc); // crc32
158 $cdrec .= pack('V', $c_len); // compressed filesize
159 $cdrec .= pack('V', $unc_len); // uncompressed filesize
160 $cdrec .= pack('v', strlen($name) ); // length of filename
161 $cdrec .= pack('v', 0 ); // extra field length
162 $cdrec .= pack('v', 0 ); // file comment length
163 $cdrec .= pack('v', 0 ); // disk number start
164 $cdrec .= pack('v', 0 ); // internal file attributes
165 $cdrec .= pack('V', 32 ); // external file attributes - 'archive' bit set
166 $cdrec .= pack('V', $this -> old_offset ); // relative offset of local header
167 $this -> old_offset = $new_offset;
168 $cdrec .= $name;
169 // optional extra field, file comment goes here
170 // save to central directory
171 $this -> ctrl_dir[] = $cdrec;
172 } // end of the 'addFile()' method
173 /**
174 * Dumps out file
175 *
176 * @return string the zipped file
177 *
178 * @access public
179 */
180 function file()
181 {
182 $data = implode('', $this -> datasec);
183 $ctrldir = implode('', $this -> ctrl_dir);
184 return
185 $data .
186 $ctrldir .
187 $this -> eof_ctrl_dir .
188 pack('v', sizeof($this -> ctrl_dir)) . // total # of entries "on this disk"
189 pack('v', sizeof($this -> ctrl_dir)) . // total # of entries overall
190 pack('V', strlen($ctrldir)) . // size of central dir
191 pack('V', strlen($data)) . // offset to start of central dir
192 "x00x00"; // .zip file comment length
193 } // end of the 'file()' method
194 } // end of the 'PHPZip' class
195 ?>
196 用法：
197
198 $zipfiles =array("/root/pooy/test1.txt","/root/pooy/test2.txt");
199 $z = new PHPZip();
200 //$randomstr = random(8);
201 $zipfile = TEMP."/photocome_".$groupid.".zip";
202 $z->Zip($zipfiles, $zipfile);
