求PHP压缩文件与解压缩文件代码 可以使用Zip File Functions (Read Only Access)函数库 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 Zip File Functions 是只读的 phpzip.lib.php<?php# # PHPZip v1.2 by Sext ([email protected]) 2002-11-18# (Changed: 2003-03-01)# # Makes zip archive## Based on "Zip file creation class", uses zLib## Examples in sample1.php, sample2.php and sample3.php#class PHPZip{function Zip($dir, $zipfilename){if (@function_exists('gzcompress')){ $curdir = getcwd();if (is_array($dir)) {$filelist = $dir;}else {$filelist = $this -> GetFileList($dir);}if ((!empty($dir))&&(!is_array($dir))&&(file_exists($dir))) chdir($dir);else chdir($curdir);if (count($filelist)>0){foreach($filelist as $filename){if (is_file($filename)){$fd = fopen ($filename, "r");$content = fread ($fd, filesize ($filename));fclose ($fd);if (is_array($dir)) $filename = basename($filename);$this -> addFile($content, $filename);}}$out = $this -> file();chdir($curdir);$fp = fopen($zipfilename, "w");fwrite($fp, $out, strlen($out));fclose($fp);}return 1;} else return 0;}function GetFileList($dir){if (file_exists($dir)){$args = func_get_args();$pref = $args[1];$dh = opendir($dir);while($files = readdir($dh)){if (($files!=".")&&($files!="..")) {if (is_dir($dir.$files)) {$curdir = getcwd();chdir($dir.$files);$file = array_merge($file, $this -> GetFileList("", "$pref$files/"));chdir($curdir);}else $file[]=$pref.$files;}}closedir($dh);}return $file;}var $datasec = array();var $ctrl_dir = array();var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";var $old_offset = 0;/*** Converts an Unix timestamp to a four byte DOS date and time format (date* in high two bytes, time in low two bytes allowing magnitude comparison).** @param integer the current Unix timestamp** @return integer the current date in a four byte DOS format** @access private*/function unix2DosTime($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;} // end ifreturn (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);} // end of the 'unix2DosTime()' method/*** Adds "file" to archive** @param string file contents* @param string name of the file in the archive (may contains the path)* @param integer the current timestamp** @access public*/function addFile($data, $name, $time = 0){$name = str_replace('\\', '/', $name);$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";$fr .= "\x14\x00"; // ver needed to extract$fr .= "\x00\x00"; // gen purpose bit flag$fr .= "\x08\x00"; // compression method$fr .= $hexdtime; // last mod time and date// "local file header" segment$unc_len = strlen($data);$crc = crc32($data);$zdata = gzcompress($data);$c_len = strlen($zdata);$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug$fr .= pack('V', $crc); // crc32$fr .= pack('V', $c_len); // compressed filesize$fr .= pack('V', $unc_len); // uncompressed filesize$fr .= pack('v', strlen($name)); // length of filename$fr .= pack('v', 0); // extra field length$fr .= $name;// "file data" segment$fr .= $zdata;// "data descriptor" segment (optional but necessary if archive is not// served as file)$fr .= pack('V', $crc); // crc32$fr .= pack('V', $c_len); // compressed filesize$fr .= pack('V', $unc_len); // uncompressed filesize// add this entry to array$this -> datasec[] = $fr;$new_offset = strlen(implode('', $this->datasec));// now add to central directory record$cdrec = "\x50\x4b\x01\x02";$cdrec .= "\x00\x00"; // version made by$cdrec .= "\x14\x00"; // version needed to extract$cdrec .= "\x00\x00"; // gen purpose bit flag$cdrec .= "\x08\x00"; // compression method$cdrec .= $hexdtime; // last mod time & date$cdrec .= pack('V', $crc); // crc32$cdrec .= pack('V', $c_len); // compressed filesize$cdrec .= pack('V', $unc_len); // uncompressed filesize$cdrec .= pack('v', strlen($name) ); // length of filename$cdrec .= pack('v', 0 ); // extra field length$cdrec .= pack('v', 0 ); // file comment length$cdrec .= pack('v', 0 ); // disk number start$cdrec .= pack('v', 0 ); // internal file attributes$cdrec .= pack('V', 32 ); // external file attributes - 'archive' bit set$cdrec .= pack('V', $this -> old_offset ); // relative offset of local header$this -> old_offset = $new_offset;$cdrec .= $name;// optional extra field, file comment goes here// save to central directory$this -> ctrl_dir[] = $cdrec;} // end of the 'addFile()' method/*** Dumps out file** @return string the zipped file** @access public*/function file(){$data = implode('', $this -> datasec);$ctrldir = implode('', $this -> ctrl_dir);return$data .$ctrldir .$this -> eof_ctrl_dir .pack('v', sizeof($this -> ctrl_dir)) . // total # of entries "on this disk"pack('v', sizeof($this -> ctrl_dir)) . // total # of entries overallpack('V', strlen($ctrldir)) . // size of central dirpack('V', strlen($data)) . // offset to start of central dir"\x00\x00"; // .zip file comment length} // end of the 'file()' method} // end of the 'PHPZip' class?>test.php<?phprequire("phpzip.lib.php");$z = new PHPZip(); $z->Zip("./lib/", "out2.zip"); //添加lib/目录和子目录下的所有档案,压缩到out2.zip?> php 里面 怎么样才算 超大数据量的项目 使用fetch_assoc()和fetch_object()出错 新手求教!如何在php中根据参数文件调用外部程序? php连接mysql 如何不用javascript如何获取多选框的 多个值 PHP sendmail 1064MySQL Query Error,急问是什么回事? 多表搜索与分页的问题 回应就给分 急需项目经理(有PHP程序经验),月薪4000~6000,大家有兴趣么? 有关session的问题,提示出现如下错误,请问怎么解决??? 请问php的设置是否正确?
<?php
#
# PHPZip v1.2 by Sext ([email protected]) 2002-11-18
# (Changed: 2003-03-01)
#
# Makes zip archive
#
# Based on "Zip file creation class", uses zLib
#
# Examples in sample1.php, sample2.php and sample3.php
#class PHPZip
{
function Zip($dir, $zipfilename)
{
if (@function_exists('gzcompress'))
{
$curdir = getcwd();
if (is_array($dir))
{
$filelist = $dir;
}
else
{
$filelist = $this -> GetFileList($dir);
}if ((!empty($dir))&&(!is_array($dir))&&(file_exists($dir))) chdir($dir);
else chdir($curdir);if (count($filelist)>0)
{
foreach($filelist as $filename)
{
if (is_file($filename))
{
$fd = fopen ($filename, "r");
$content = fread ($fd, filesize ($filename));
fclose ($fd);if (is_array($dir)) $filename = basename($filename);
$this -> addFile($content, $filename);
}
}
$out = $this -> file();chdir($curdir);
$fp = fopen($zipfilename, "w");
fwrite($fp, $out, strlen($out));
fclose($fp);
}
return 1;
}
else return 0;
}function GetFileList($dir)
{
if (file_exists($dir))
{
$args = func_get_args();
$pref = $args[1];$dh = opendir($dir);
while($files = readdir($dh))
{
if (($files!=".")&&($files!=".."))
{
if (is_dir($dir.$files))
{
$curdir = getcwd();
chdir($dir.$files);
$file = array_merge($file, $this -> GetFileList("", "$pref$files/"));
chdir($curdir);
}
else $file[]=$pref.$files;
}
}
closedir($dh);
}
return $file;
}var $datasec = array();
var $ctrl_dir = array();
var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
var $old_offset = 0;/**
* Converts an Unix timestamp to a four byte DOS date and time format (date
* in high two bytes, time in low two bytes allowing magnitude comparison).
*
* @param integer the current Unix timestamp
*
* @return integer the current date in a four byte DOS format
*
* @access private
*/
function unix2DosTime($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;
$timearray['seconds'] = 0;
} // end ifreturn (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
} // end of the 'unix2DosTime()' method
/**
* Adds "file" to archive
*
* @param string file contents
* @param string name of the file in the archive (may contains the path)
* @param integer the current timestamp
*
* @access public
*/
function addFile($data, $name, $time = 0)
{
$name = str_replace('\\', '/', $name);$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"; // ver needed to extract
$fr .= "\x00\x00"; // gen purpose bit flag
$fr .= "\x08\x00"; // compression method
$fr .= $hexdtime; // last mod time and date// "local file header" segment
$unc_len = strlen($data);
$crc = crc32($data);
$zdata = gzcompress($data);
$c_len = strlen($zdata);
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
$fr .= pack('V', $crc); // crc32
$fr .= pack('V', $c_len); // compressed filesize
$fr .= pack('V', $unc_len); // uncompressed filesize
$fr .= pack('v', strlen($name)); // length of filename
$fr .= pack('v', 0); // extra field length
$fr .= $name;// "file data" segment
$fr .= $zdata;// "data descriptor" segment (optional but necessary if archive is not
// served as file)
$fr .= pack('V', $crc); // crc32
$fr .= pack('V', $c_len); // compressed filesize
$fr .= pack('V', $unc_len); // uncompressed filesize// add this entry to array
$this -> datasec[] = $fr;
$new_offset = strlen(implode('', $this->datasec));// now add to central directory record
$cdrec = "\x50\x4b\x01\x02";
$cdrec .= "\x00\x00"; // version made by
$cdrec .= "\x14\x00"; // version needed to extract
$cdrec .= "\x00\x00"; // gen purpose bit flag
$cdrec .= "\x08\x00"; // compression method
$cdrec .= $hexdtime; // last mod time & date
$cdrec .= pack('V', $crc); // crc32
$cdrec .= pack('V', $c_len); // compressed filesize
$cdrec .= pack('V', $unc_len); // uncompressed filesize
$cdrec .= pack('v', strlen($name) ); // length of filename
$cdrec .= pack('v', 0 ); // extra field length
$cdrec .= pack('v', 0 ); // file comment length
$cdrec .= pack('v', 0 ); // disk number start
$cdrec .= pack('v', 0 ); // internal file attributes
$cdrec .= pack('V', 32 ); // external file attributes - 'archive' bit set$cdrec .= pack('V', $this -> old_offset ); // relative offset of local header
$this -> old_offset = $new_offset;$cdrec .= $name;// optional extra field, file comment goes here
// save to central directory
$this -> ctrl_dir[] = $cdrec;
} // end of the 'addFile()' method
/**
* Dumps out file
*
* @return string the zipped file
*
* @access public
*/
function file()
{
$data = implode('', $this -> datasec);
$ctrldir = implode('', $this -> ctrl_dir);return
$data .
$ctrldir .
$this -> eof_ctrl_dir .
pack('v', sizeof($this -> ctrl_dir)) . // total # of entries "on this disk"
pack('v', sizeof($this -> ctrl_dir)) . // total # of entries overall
pack('V', strlen($ctrldir)) . // size of central dir
pack('V', strlen($data)) . // offset to start of central dir
"\x00\x00"; // .zip file comment length
} // end of the 'file()' method
} // end of the 'PHPZip' class
?>test.php
<?php
require("phpzip.lib.php");
$z = new PHPZip(); $z->Zip("./lib/", "out2.zip"); //添加lib/目录和子目录下的所有档案,压缩到out2.zip
?>