golang用zip打包文件简单例子

代码如下所示:

package main
 
import (
    "archive/zip"
    "io"
    "fmt"
    "os"
)
 
func main() {
    files := []string{"aa", "1.txt"}
    output := "out.zip"
 
    newZipFile, err := os.Create(output)
    errOut(err)
 
    defer newZipFile.Close()
 
    zipWriter := zip.NewWriter(newZipFile)
    defer zipWriter.Close()
 
    for _, file := range files {
        fileToZip, err := os.Open(file)
        errOut(err)
 
        info, err := fileToZip.Stat()
        errOut(err)
 
        header, err := zip.FileInfoHeader(info)
        errOut(err)
 
        header.Name = file
        header.Method = zip.Deflate
 
        writer, err := zipWriter.CreateHeader(header)
        errOut(err)
 
        _, err = io.Copy(writer, fileToZip)
        errOut(err)
    }
 
    fmt.Println("zip done!")
}
 
func errOut(err error) {
    if err != nil {
        panic(err)
    }
}

PHP ZIP 压缩类

class PHPZip
{
    function zip($dir, $zipfilename, $drop=false)
    {
        if (substr($dir, -1) != '/')
        {
            $dir = ($dir == '') ? './' : $dir . '/';
        }
 
        if (@function_exists('gzcompress'))
        {
            $curdir = getcwd();
            if (is_array($dir))
            {
                $filelist = $dir;
            }
            else
            {
                $filelist = $this -> get_filelist($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, 'rb');
                        $content = fread ($fd, filesize ($filename));
                        fclose ($fd);
 
                        if (is_array($dir))
                        {
                            $filename = basename($filename);
                        }
                        $this -> add_file($content, $filename);
 
                        if ($drop)
                        {
                            @unlink($filename);
                        }
                    }
                }
                $out = $this -> file();
 
                chdir($curdir);
                $fp = fopen($zipfilename, 'wb');
                fwrite($fp, $out, strlen($out));
                fclose($fp);
            }
 
            return 1;
        }
        else
        {
            return 0;
        }
    }
 
    function get_filelist($dir)
    {
        $file = array();
        $dir = rtrim($dir,'/');
        if (file_exists($dir))
        {
            $args = func_get_args();
            $pref = isset($args[1]) ? $args[1] : '';
 
            $dh = opendir($dir);
            while (($files = readdir($dh)) !== false)
            {
                if (($files != '.') && ($files != '..'))
                {
                    if (is_dir($dir .'/'. $files))
                    {
                        $file = array_merge($file, $this -> get_filelist($dir .'/'. $files, "$pref$files/"));
                    }
                    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 if
 
        return (($timearray['year'] - 1980) << 25) | ($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 add_file($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 'add_file()' 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