直接贴出类库代码，里面有具体的用法，加载类库。copy出方法就可以用了
1 <?php 2 /** 3 * Created by JetBrains PhpStorm. 4 * User: tuisiyuan 5 * Date: 13-11-15 6 * Time: 下午2:23 7 * To change this template use File | Settings | File Templates. 8 */ 9 class PHPZip { 10 private $ctrl_dir = array(); 11 private $datasec = array(); 12 13 /********************************************************** 14 * 压缩部分 15 **********************************************************/ 16 // ------------------------------------------------------ // 17 // #遍历指定文件夹 18 // 19 // $archive = new PHPZip(); 20 // $filelist = $archive->visitFile(文件夹路径); 21 // print "当前文件夹的文件:<p>\r\n"; 22 // foreach($filelist as $file) 23 // printf("%s<br>\r\n", $file); 24 // ------------------------------------------------------ // 25 var $fileList = array(); 26 public function visitFile($path) { 27 global $fileList; 28 $path = str_replace("\\", "/", $path); 29 $fdir = dir($path); 30 31 while(($file = $fdir->read()) !== false) { 32 if($file == \'.\' || $file == \'..\'){ continue; } 33 34 $pathSub = preg_replace("*/{2,}*", "/", $path."/".$file); // 替换多个反斜杠 35 $fileList[] = is_dir($pathSub) ? $pathSub."/" : $pathSub; 36 if(is_dir($pathSub)){ $this->visitFile($pathSub); } 37 } 38 $fdir->close(); 39 return $fileList; 40 } 41 42 43 private function unix2DosTime($unixtime = 0) { 44 $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime); 45 46 if($timearray[\'year\'] < 1980) { 47 $timearray[\'year\'] = 1980; 48 $timearray[\'mon\'] = 1; 49 $timearray[\'mday\'] = 1; 50 $timearray[\'hours\'] = 0; 51 $timearray[\'minutes\'] = 0; 52 $timearray[\'seconds\'] = 0; 53 } 54 return (($timearray[\'year\'] - 1980) << 25) 55 | ($timearray[\'mon\'] << 21) 56 | ($timearray[\'mday\'] << 16) 57 | ($timearray[\'hours\'] << 11) 58 | ($timearray[\'minutes\'] << 5) 59 | ($timearray[\'seconds\'] >> 1); 60 } 61 62 63 var $old_offset = 0; 64 private function addFile($data, $filename, $time = 0) { 65 $filename = str_replace(\'\\\', \'/\', $filename); 66 67 $dtime = dechex($this->unix2DosTime($time)); 68 $hexdtime = \'\x\' . $dtime[6] . $dtime[7] 69 . \'\x\' . $dtime[4] . $dtime[5] 70 . \'\x\' . $dtime[2] . $dtime[3] 71 . \'\x\' . $dtime[0] . $dtime[1]; 72 eval(\'$hexdtime = "\' . $hexdtime . \'";\'); 73 74 $fr = "\x50\x4b\x03\x04"; 75 $fr .= "\x14\x00"; 76 $fr .= "\x00\x00"; 77 $fr .= "\x08\x00"; 78 $fr .= $hexdtime; 79 $unc_len = strlen($data); 80 $crc = crc32($data); 81 $zdata = gzcompress($data); 82 $c_len = strlen($zdata); 83 $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); 84 $fr .= pack(\'V\', $crc); 85 $fr .= pack(\'V\', $c_len); 86 $fr .= pack(\'V\', $unc_len); 87 $fr .= pack(\'v\', strlen($filename)); 88 $fr .= pack(\'v\', 0); 89 $fr .= $filename; 90 91 $fr .= $zdata; 92 93 $fr .= pack(\'V\', $crc); 94 $fr .= pack(\'V\', $c_len); 95 $fr .= pack(\'V\', $unc_len); 96 97 $this->datasec[] = $fr; 98 $new_offset = strlen(implode(\'\', $this->datasec)); 99 100 $cdrec = "\x50\x4b\x01\x02"; 101 $cdrec .= "\x00\x00"; 102 $cdrec .= "\x14\x00"; 103 $cdrec .= "\x00\x00"; 104 $cdrec .= "\x08\x00"; 105 $cdrec .= $hexdtime; 106 $cdrec .= pack(\'V\', $crc); 107 $cdrec .= pack(\'V\', $c_len); 108 $cdrec .= pack(\'V\', $unc_len); 109 $cdrec .= pack(\'v\', strlen($filename) ); 110 $cdrec .= pack(\'v\', 0 ); 111 $cdrec .= pack(\'v\', 0 ); 112 $cdrec .= pack(\'v\', 0 ); 113 $cdrec .= pack(\'v\', 0 ); 114 $cdrec .= pack(\'V\', 32 ); 115 116 $cdrec .= pack(\'V\', $this->old_offset ); 117 $this->old_offset = $new_offset; 118 119 $cdrec .= $filename; 120 $this->ctrl_dir[] = $cdrec; 121 } 122 123 124 var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; 125 private function file() { 126 $data = implode(\'\', $this->datasec); 127 $ctrldir = implode(\'\', $this->ctrl_dir); 128 129 return $data 130 . $ctrldir 131 . $this->eof_ctrl_dir 132 . pack(\'v\', sizeof($this->ctrl_dir)) 133 . pack(\'v\', sizeof($this->ctrl_dir)) 134 . pack(\'V\', strlen($ctrldir)) 135 . pack(\'V\', strlen($data)) 136 . "\x00\x00"; 137 } 138 139 140 // ------------------------------------------------------ // 141 // #压缩到服务器 142 // 143 // $archive = new PHPZip(); 144 // $archive->Zip("需压缩的文件所在目录", "ZIP压缩文件名"); 145 // ------------------------------------------------------ // 146 public function Zip($dir, $saveName) { 147 if(@!function_exists(\'gzcompress\')){ return; } 148 149 ob_end_clean(); 150 $filelist = $this->visitFile($dir); 151 if(count($filelist) == 0){ return; } 152 153 foreach($filelist as $file) { 154 if(!file_exists($file) || !is_file($file)){ continue; } 155 156 $fd = fopen($file, "rb"); 157 $content = @fread($fd, filesize($file)); 158 fclose($fd); 159 160 // 1.删除$dir的字符(./folder/file.txt删除./folder/) 161 // 2.如果存在/就删除(/file.txt删除/) 162 $file = substr($file, strlen($dir)); 163 if(substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/"){ $file = substr($file, 1); } 164 165 $this->addFile($content, $file); 166 } 167 $out = $this->file(); 168 169 $fp = fopen($saveName, "wb"); 170 fwrite($fp, $out, strlen($out)); 171 fclose($fp); 172 } 173 174 175 // ------------------------------------------------------ // 176 // #压缩并直接下载 177 // 178 // $archive = new PHPZip(); 179 // $archive->ZipAndDownload("需压缩的文件所在目录"); 180 // ------------------------------------------------------ // 181 public function ZipAndDownload($dir) { 182 if(@!function_exists(\'gzcompress\')){ return; } 183 184 ob_end_clean(); 185 $filelist = $this->visitFile($dir); 186 if(count($filelist) == 0){ return; } 187 188 foreach($filelist as $file) { 189 if(!file_exists($file) || !is_file($file)){ continue; } 190 191 $fd = fopen($file, "rb"); 192 $content = @fread($fd, filesize($file)); 193 fclose($fd); 194 195 // 1.删除$dir的字符(./folder/file.txt删除./folder/) 196 // 2.如果存在/就删除(/file.txt删除/) 197 $file = substr($file, strlen($dir)); 198 if(substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/"){ $file = substr($file, 1); } 199 200 $this->addFile($content, $file); 201 } 202 $out = $this->file(); 203 204 @header(\'Content-Encoding: none\'); 205 @header(\'Content-Type: application/zip\'); 206 @header(\'Content-Disposition: attachment ; filename=Farticle\'.date("YmdHis", time()).\'.zip\'); 207 @header(\'Pragma: no-cache\'); 208 @header(\'Expires: 0\'); 209 print($out); 210 } 211 /********************************************************** 212 * 解压部分 213 **********************************************************/ 214 // ------------------------------------------------------ // 215 // ReadCentralDir($zip, $zipfile) 216 // $zip是经过@fopen($zipfile, \'rb\')打开的 217 // $zipfile是zip文件的路径 218 // ------------------------------------------------------ // 219 private function ReadCentralDir($zip, $zipfile) { 220 $size = filesize($zipfile); 221 $max_size = ($size < 277) ? $size : 277; 222 223 @fseek($zip, $size - $max_size); 224 $pos = ftell($zip); 225 $bytes = 0x00000000; 226 227 while($pos < $size) { 228 $byte = @fread($zip, 1); 229 $bytes = ($bytes << 8) | Ord($byte); 230 $pos++; 231 if($bytes == 0x504b0506){ break; } 232 } 233 234 $data = unpack(\'vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size\', fread($zip, 18)); 235 236 $centd[\'comment\'] = ($data[\'comment_size\'] != 0) ? fread($zip, $data[\'comment_size\']) : \'\'; // 注释 237 $centd[\'entries\'] = $data[\'entries\']; 238 $centd[\'disk_entries\'] = $data[\'disk_entries\']; 239 $centd[\'offset\'] = $data[\'offset\']; 240 $centd[\'disk_start\'] = $data[\'disk_start\']; 241 $centd[\'size\'] = $data[\'size\']; 242 $centd[\'disk\'] = $data[\'disk\']; 243 return $centd; 244 } 245 246 247 private function ReadCentralFileHeaders($zip) { 248 $binary_data = fread($zip, 46); 249 $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\', $binary_data); 250 251 $header[\'filename\'] = ($header[\'filename_len\'] != 0) ? fread($zip, $header[\'filename_len\']) : \'\'; 252 $header[\'extra\'] = ($header[\'extra_len\'] != 0) ? fread($zip, $header[\'extra_len\']) : \'\'; 253 $header[\'comment\'] = ($header[\'comment_len\'] != 0) ? fread($zip, $header[\'comment_len\']) : \'\'; 254 255 256 if($header[\'mdate\'] && $header[\'mtime\']) { 257 $hour = ($header[\'mtime\'] & 0xF800) >> 11; 258 $minute = ($header[\'mtime\'] & 0x07E0) >> 5; 259 $seconde = ($header[\'mtime\'] & 0x001F) * 2; 260 $year = (($header[\'mdate\'] & 0xFE00) >> 9) + 1980; 261 $month = ($header[\'mdate\'] & 0x01E0) >> 5; 262 $day = $header[\'mdate\'] & 0x001F; 263 $header[\'mtime\'] = mktime($hour, $minute, $seconde, $month, $day, $year); 264 } else { 265 $header[\'mtime\'] = time(); 266 } 267 $header[\'stored_filename\'] = $header[\'filename\']; 268 $header[\'status\'] = \'ok\'; 269 if(substr($header[\'filename\'], -1) == \'/\'){ $header[\'external\'] = 0x41FF0010; } // 判断是否文件夹 270 return $header; 271 } 272 273 274 private function ReadFileHeader($zip) { 275 $binary_data = fread($zip, 30); 276 $data = unpack(\'vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len\', $binary_data); 277 278 $header[\'filename\'] = fread($zip, $data[\'filename_len\']); 279 $header[\'extra\'] = ($data[\'extra_len\'] != 0) ? fread($zip, $data[\'extra_len\']) : \'\'; 280 $header[\'compression\'] = $data[\'compression\']; 281 $header[\'size\'] = $data[\'size\']; 282 $header[\'compressed_size\'] = $data[\'compressed_size\']; 283 $header[\'crc\'] = $data[\'crc\']; 284 $header[\'flag\'] = $data[\'flag\']; 285 $header[\'mdate\'] = $data[\'mdate\']; 286 $header[\'mtime\'] = $data[\'mtime\']; 287 288 if($header[\'mdate\'] && $header[\'mtime\']){ 289 $hour = ($header[\'mtime\'] & 0xF800) >> 11; 290 $minute = ($header[\'mtime\'] & 0x07E0) >> 5; 291 $seconde = ($header[\'mtime\'] & 0x001F) * 2; 292 $year = (($header[\'mdate\'] & 0xFE00) >> 9) + 1980; 293 $month = ($header[\'mdate\'] & 0x01E0) >> 5; 294 $day = $header[\'mdate\'] & 0x001F; 295 $header[\'mtime\'] = mktime($hour, $minute, $seconde, $month, $day, $year); 296 }else{ 297 $header[\'mtime\'] = time(); 298 } 299 300 $header[\'stored_filename\'] = $header[\'filename\']; 301 $header[\'status\'] = "ok"; 302 return $header; 303 } 304 305 306 private function ExtractFile($header, $to, $zip) { 307 $header = $this->readfileheader($zip); 308 309 if(substr($to, -1) != "/"){ $to .= "/"; } 310 if(!@is_dir($to)){ @mkdir($to, 0777); } 311 312 $pth = explode("/", dirname($header[\'filename\'])); 313 $pthss = \'\'; 314 for($i=0; isset($pth[$i]); $i++){ 315 if(!$pth[$i]){ continue; } 316 $pthss .= $pth[$i]."/"; 317 if(!is_dir($to.$pthss)){ @mkdir($to.$pthss, 0777); } 318 } 319 320 if(!($header[\'external\'] == 0x41FF0010) && !($header[\'external\'] == 16)) { 321 if($header[\'compression\'] == 0) { 322 $fp = @fopen($to.$header[\'filename\'], \'wb\'); 323 if(!$fp){ return(-1); } 324 $size = $header[\'compressed_size\']; 325 326 while($size != 0) { 327 $read_size = ($size < 2048 ? $size : 2048); 328 $buffer = fread($zip, $read_size); 329 $binary_data = pack(\'a\'.$read_size, $buffer); 330 @fwrite($fp, $binary_data, $read_size); 331 $size -= $read_size; 332 } 333 fclose($fp); 334 touch($to.$header[\'filename\'], $header[\'mtime\']); 335 336 }else{ 337 338 $fp = @fopen($to.$header[\'filename\'].\'.gz\', \'wb\'); 339 if(!$fp){ return(-1); } 340 $binary_data = pack(\'va1a1Va1a1\', 0x8b1f, Chr($header[\'compression\']), Chr(0x00), time(), Chr(0x00), Chr(3)); 341 342 fwrite($fp, $binary_data, 10); 343 $size = $header[\'compressed_size\']; 344 345 while($size != 0) { 346 $read_size = ($size < 1024 ? $size : 1024); 347 $buffer = fread($zip, $read_size); 348 $binary_data = pack(\'a\'.$read_size, $buffer); 349 @fwrite($fp, $binary_data, $read_size); 350 $size -= $read_size; 351 } 352 353 $binary_data = pack(\'VV\', $header[\'crc\'], $header[\'size\']); 354 fwrite($fp, $binary_data, 8); 355 fclose($fp); 356 357 $gzp = @gzopen($to.$header[\'filename\'].\'.gz\', \'rb\') or die("Cette archive est compress!"); 358 359 if(!$gzp){ return(-2); } 360 $fp = @fopen($to.$header[\'filename\'], \'wb\'); 361 if(!$fp){ return(-1); } 362 $size = $header[\'size\']; 363 364 while($size != 0) { 365 $read_size = ($size < 2048 ? $size : 2048); 366 $buffer = gzread($gzp, $read_size); 367 $binary_data = pack(\'a\'.$read_size, $buffer); 368 @fwrite($fp, $binary_data, $read_size); 369 $size -= $read_size; 370 } 371 fclose($fp); gzclose($gzp); 372 373 touch($to.$header[\'filename\'], $header[\'mtime\']); 374 @unlink($to.$header[\'filename\'].\'.gz\'); 375 } 376 } 377 return true; 378 } 379 380 381 // ------------------------------------------------------ // 382 // #解压文件 383 // 384 // $archive = new PHPZip(); 385 // $zipfile = "ZIP压缩文件名"; 386 // $savepath = "解压缩目录名"; 387 // $zipfile = $unzipfile; 388 // $savepath = $unziptarget; 389 // $array = $archive->GetZipInnerFilesInfo($zipfile); 390 // $filecount = 0; 391 // $dircount = 0; 392 // $failfiles = array(); 393 // set_time_limit(0); // 修改为不限制超时时间(默认为30秒) 394 // 395 // for($i=0; $i<count($array); $i++) { 396 // if($array[$i][folder] == 0){ 397 // if($archive->unZip($zipfile, $savepath, $i) > 0){ 398 // $filecount++; 399 // }else{ 400 // $failfiles[] = $array[$i][filename]; 401 // } 402 // }else{ 403 // $dircount++; 404 // } 405 // } 406 // set_time_limit(30); 407 //printf("文件夹:%d 解压文件:%d 失败:%d<br>\r\n", $dircount, $filecount, count($failfiles)); 408 //if(count($failfiles) > 0){ 409 // foreach($failfiles as $file){ 410 // printf("·%s<br>\r\n", $file); 411 // } 412 //} 413 // ------------------------------------------------------ // 414 public function unZip($zipfile, $to, $index = Array(-1)) { 415 $ok = 0; 416 $zip = @fopen($zipfile, \'rb\'); 417 if(!$zip){ return(-1); } 418 419 $cdir = $this->ReadCentralDir($zip, $zipfile); 420 $pos_entry = $cdir[\'offset\']; 421 422 if(!is_array($index)){ $index = array($index); } 423 for($i=0; $index[$i]; $i++) { 424 if(intval($index[$i]) != $index[$i] || $index[$i] > $cdir[\'entries\']) { 425 return(-1); 426 } 427 } 428 429 for($i=0; $i<$cdir[\'entries\']; $i++) { 430 @fseek($zip, $pos_entry); 431 $header = $this->ReadCentralFileHeaders($zip); 432 $header[\'index\'] = $i; 433 $pos_entry = ftell($zip); 434 @rewind($zip); 435 fseek($zip, $header[\'offset\']); 436 if(in_array("-1", $index) || in_array($i, $index)) { 437 $stat[$header[\'filename\']] = $this->ExtractFile($header, $to, $zip); 438 } 439 } 440 441 fclose($zip); 442 return $stat; 443 } 444 /********************************************************** 445 * 其它部分 446 **********************************************************/ 447 // ------------------------------------------------------ // 448 // #获取被压缩文件的信息 449 // 450 // $archive = new PHPZip(); 451 // $array = $archive->GetZipInnerFilesInfo(ZIP压缩文件名); 452 // for($i=0; $i<count($array); $i++) { 453 // printf("<b>·%s</b><br>\r\n", $array[$i][filename]); 454 // foreach($array[$i] as $key => $value) 455 // printf("%s => %s<br>\r\n", $key, $value); 456 // print "\r\n<p>------------------------------------<p>\r\n\r\n"; 457 // } 458 // ------------------------------------------------------ // 459 public function GetZipInnerFilesInfo($zipfile) { 460 $zip = @fopen($zipfile, \'rb\'); 461 if(!$zip){ return(0); } 462 $centd = $this->ReadCentralDir($zip, $zipfile); 463 464 @rewind($zip); 465 @fseek($zip, $centd[\'offset\']); 466 $ret = array(); 467 468 for($i=0; $i<$centd[\'entries\']; $i++) { 469 $header = $this->ReadCentralFileHeaders($zip); 470 $header[\'index\'] = $i; 471 $info = array( 472 \'filename\' => $header[\'filename\'], // 文件名 473 \'stored_filename\' => $header[\'stored_filename\'], // 压缩后文件名 474 \'size\' => $header[\'size\'], // 大小 475 \'compressed_size\' => $header[\'compressed_size\'], // 压缩后大小 476 \'crc\' => strtoupper(dechex($header[\'crc\'])), // CRC32 477 \'mtime\' => date("Y-m-d H:i:s",$header[\'mtime\']), // 文件修改时间 478 \'comment\' => $header[\'comment\'], // 注释 479 \'folder\' => ($header[\'external\'] == 0x41FF0010 || $header[\'external\'] == 16) ? 1 : 0, // 是否为文件夹 480 \'index\' => $header[\'index\'], // 文件索引 481 \'status\' => $header[\'status\'] // 状态 482 ); 483 $ret[] = $info; 484 unset($header); 485 } 486 fclose($zip); 487 return $ret; 488 } 489 // ------------------------------------------------------ // 490 // #获取压缩文件的注释 491 // 492 // $archive = new PHPZip(); 493 // echo $archive->GetZipComment(ZIP压缩文件名); 494 // ------------------------------------------------------ // 495 public function GetZipComment($zipfile) { 496 $zip = @fopen($zipfile, \'rb\'); 497 if(!$zip){ return(0); } 498 $centd = $this->ReadCentralDir($zip, $zipfile); 499 fclose($zip); 500 return $centd[comment]; 501 } 502 }
本文链接： PHPZip–php对文件压缩解压
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