这篇文章主要为大家详细介绍了PHP多个图片压缩成ZIP的方法，可将多个文件压缩成一个zip压缩包，具有一定的参考价值，感兴趣的小伙伴们可以参考一下。

本文实例为大家分享了PHP多个图片压缩成ZIP的具体代码，供大家参考，具体内容如下。

可将多个文件压缩成一个zip压缩包，文件名可自定义（兼容中文文件名）

1. <?php
2. header("Content-type: text/html; charset=utf-8");
3. class zipfile {
4. var $datasec = array ();
5. var $ctrl_dir = array ();
6. var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
7. var $old_offset = 0;
8. function unix2_dostime($unixtime = 0){
9. $timearray = ($unixtime == 0) ? getdate () : getdate($unixtime);
10. if ($timearray ['year'] < 1980){
11. $timearray ['year'] = 1980;
12. $timearray ['mon'] = 1;
13. $timearray ['mday'] = 1;
14. $timearray ['hours'] = 0;
15. $timearray ['minutes'] = 0;
16. $timearray ['seconds'] = 0;
17. }
18. return (($timearray ['year'] - 1980) << 25) | ($timearray ['mon'] << 21) | ($timearray ['mday'] << 16) | ($timearray ['hours'] << 11) | ($timearray ['minutes'] << 5) | ($timearray ['seconds'] >> 1);
19. }
20. function add_file($data, $name, $time = 0){
21. $name = urldecode($name);
22. //判断文件名中是否含有中文
23. if (preg_match("/[\x7f-\xff]/", $name)) {
24. $name = $this->iconv_to_utf8($name,'GB2312');
25. }
26. $name = str_replace('\\', '/', $name);
27. $dtime = dechex($this->unix2_dostime($time));
28. $hexdtime = '\x' . $dtime [6] . $dtime [7] . '\x' . $dtime [4] . $dtime [5] . '\x' . $dtime [2] . $dtime [3] . '\x' . $dtime [0] . $dtime [1];
29. eval('$hexdtime = "' . $hexdtime . '";');
30. $fr = "\x50\x4b\x03\x04";
31. $fr .= "\x14\x00";
32. $fr .= "\x00\x00";
33. $fr .= "\x08\x00";
34. $fr .= $hexdtime;
35. $unc_len = strlen($data);
36. $crc = crc32($data);
37. $zdata = gzcompress($data);
38. $zdata = substr(substr($zdata, 0, strlen($zdata)- 4), 2);
39. $c_len = strlen($zdata);
40. $fr .= pack('V', $crc);
41. $fr .= pack('V', $c_len);
42. $fr .= pack('V', $unc_len);
43. $fr .= pack('v', strlen($name));
44. $fr .= pack('v', 0);
45. $fr .= $name;
46. $fr .= $zdata;
47. $fr .= pack('V', $crc);
48. $fr .= pack('V', $c_len);
49. $fr .= pack('V', $unc_len);
50. $this->datasec [] = $fr;
51. $cdrec = "\x50\x4b\x01\x02";
52. $cdrec .= "\x00\x00";
53. $cdrec .= "\x14\x00";
54. $cdrec .= "\x00\x00";
55. $cdrec .= "\x08\x00";
56. $cdrec .= $hexdtime;
57. $cdrec .= pack('V', $crc);
58. $cdrec .= pack('V', $c_len);
59. $cdrec .= pack('V', $unc_len);
60. $cdrec .= pack('v', strlen($name));
61. $cdrec .= pack('v', 0);
62. $cdrec .= pack('v', 0);
63. $cdrec .= pack('v', 0);
64. $cdrec .= pack('v', 0);
65. $cdrec .= pack('V', 32);
66. $cdrec .= pack('V', $this->old_offset);
67. $this->old_offset += strlen($fr);
68. $cdrec .= $name;
69. $this->ctrl_dir[] = $cdrec;
70. }
71. function add_path($path, $l = 0){
72. $d = @opendir($path);
73. $l = $l > 0 ? $l : strlen($path) + 1;
74. while($v = @readdir($d)){
75. if($v == '.' || $v == '..'){
76. continue;
77. }
78. $v = $path . '/' . $v;
79. if(is_dir($v)){
80. $this->add_path($v, $l);
81. } else {
82. $this->add_file(file_get_contents($v), substr($v, $l));
83. }
84. }
85. }
86. function file(){
87. $data = implode('', $this->datasec);
88. $ctrldir = implode('', $this->ctrl_dir);
89. 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($data)) . "\x00\x00";
90. }
91. function add_files($files){
92. foreach($files as $file){
93. if (is_file($file)){
94. $data = implode("", file($file));
95. $this->add_file($data, $file);
96. }
97. }
98. }
99. function output($file){
100. $fp = fopen($file, "w");
101. fwrite($fp, $this->file ());
102. fclose($fp);
103. }
104. /**
105. * 转码为UTF-8
106. * @param $keyword 要转码的字符串
107. */
108. function iconv_to_utf8($keyword, $to='UTF-8'){
109. $encode = mb_detect_encoding($keyword, array('ASCII','UTF-8','GBK','GB2312'));
110. if($encode != $to){
111. $keyword = iconv($encode, $to, $keyword);
112. }
113. return $keyword;
114. }
115. }
116. $dfile = tempnam('/tmp', 'tmp');//产生一个临时文件，用于缓存下载文件
117. $zip = new zipfile();
118. //----------------------
119. $filename = 'image.zip'; //下载的默认文件名
120. $filename = $filename;
121. $host = 'http://test.love11.com';
122. //$dir_name = $host.'/images/point_qrcode/';
123. $image = array(
124. array('image_src' => 'test2.jpg', 'image_name' => '中文1.jpg'),
125. array('image_src' => 'weixin.jpg', 'image_name' => '中文2.jpg'),
126. );
127. foreach($image as $v){
128. $zip->add_file(file_get_contents($dir_name.urlencode($v['image_src'])), $v['image_name']);
129. // 添加打包的图片，第一个参数是图片内容，第二个参数是压缩包里面的显示的名称, 可包含路径
130. // 或是想打包整个目录 用 $zip->add_path($image_path);
131. }
132. //----------------------
133. $zip->output($dfile);
134. // 下载文件
135. ob_clean();
136. header('Pragma: public');
137. header('Last-Modified:'.gmdate('D, d M Y H:i:s') . 'GMT');
138. header('Cache-Control:no-store, no-cache, must-revalidate');
139. header('Cache-Control:pre-check=0, post-check=0, max-age=0');
140. header('Content-Transfer-Encoding:binary');
141. header('Content-Encoding:none');
142. header('Content-type:multipart/form-data');
143. header('Content-Disposition:attachment; filename="'.$filename.'"'); //设置下载的默认文件名
144. header('Content-length:'. filesize($dfile));
145. $fp = fopen($dfile, 'r');
146. while(connection_status() == 0 && $buf = @fread($fp, 8192)){
147. echo $buf;
148. }
149. fclose($fp);
150. @unlink($dfile);
151. @flush();
152. @ob_flush();
153. exit();
154. ?>