Lave zip filer med både mapper og filer under Windows og *nix

Hvilket fejl får du???

Jamen indtil videre får jeg sådan set bare

Fatal error: Call to undefined function: gzcompress() in D:\HTML\udvidet\indhold\zip.lib.php on line 112

Men det er det mindste problem, eftersom det er aktiveret på min udbyders webserver.

Det store problem kommer når jeg vil til at lægge hele mapper ned i zipfilen. Det står der ikke rigtig nogen steder hvordan man gør!

mit gæt vil være at du skal løbe hele mappen igennem for filer, og så lægge dem ind... altså noget med en funktion der kan kalde sig selv osv...

Morten

Jeg fandt ud af en løsning, der godt nok ikke selv "crawler" videre ned i mapperne, men det kan jeg leve med. Det jeg skal lave backup af har en flad og forudsigelig struktur.

For dem der har brug for noget lignende kan jeg fortælle at dette virker, hvis ellers php_zlib.dll er installeret og aktiveret i php.ini

Der er 2 filer, den ene en udgave af zip.lib.php der muligvis er forældet, men som er nemmere at arbejde med end den allernyeste. Den anden fil er selve PHP scriptet, det hedder test.php

zip.lib.php:

<?php

/*

Zip file creation class
makes zip files on the fly...

use the functions add_dir() and add_file() to build the zip file;
see example code below

by Eric Mueller
http://www.themepark.com

v1.1 9-20-01
  - added comments to example

v1.0 2-5-01

initial version with:
  - class appearance
  - add_file() and file() methods
  - gzcompress() output hacking
by Denis O.Philippov, webmaster@atlant.ru, http://www.atlant.ru

*/

// official ZIP file format: http://www. // pkware.com/appnote.txt

class zipfile 
{ 

    var $datasec = array(); // array to store compressed data
    var $ctrl_dir = array(); // central directory 
    var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; //end of Central directory record
    var $old_offset = 0;

    function add_dir($name) 

    // adds "directory" to archive - do this before putting any files in directory!
    // $name - name of directory... like this: "path/"
    // ...then you can add files using add_file with names like "path/file.txt"
    { 
        $name = str_replace("\\", "/", $name); 

        $fr = "\x50\x4b\x03\x04";
        $fr .= "\x0a\x00";    // ver needed to extract
        $fr .= "\x00\x00";    // gen purpose bit flag
        $fr .= "\x00\x00";    // compression method
        $fr .= "\x00\x00\x00\x00"; // last mod time and date

        $fr .= pack("V",0); // crc32
        $fr .= pack("V",0); //compressed filesize
        $fr .= pack("V",0); //uncompressed filesize
        $fr .= pack("v", strlen($name) ); //length of pathname
        $fr .= pack("v", 0 ); //extra field length
        $fr .= $name; 
        // end of "local file header" segment

        // no "file data" segment for path

        // "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));

        // ext. file attributes mirrors MS-DOS directory attr byte, detailed
        // at http://support.microsoft.com/support/kb/articles/Q125/0/19.asp

        // now add to central record
        $cdrec = "\x50\x4b\x01\x02";
        $cdrec .="\x00\x00";    // version made by
        $cdrec .="\x0a\x00";    // version needed to extract
        $cdrec .="\x00\x00";    // gen purpose bit flag
        $cdrec .="\x00\x00";    // compression method
        $cdrec .="\x00\x00\x00\x00"; // last mod time & date
        $cdrec .= pack("V",0); // crc32
        $cdrec .= pack("V",0); //compressed filesize
        $cdrec .= pack("V",0); //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
        $ext = "\x00\x00\x10\x00";
        $ext = "\xff\xff\xff\xff"; 
        $cdrec .= pack("V", 16 ); //external file attributes  - 'directory' 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 array
        $this -> ctrl_dir[] = $cdrec; 

       
    }


    function add_file($data, $name) 

    // adds "file" to archive 
    // $data - file contents
    // $name - name of file in archive. Add path if your want

    { 
        $name = str_replace("\\", "/", $name); 
        //$name = str_replace("\\", "\\\\", $name);

        $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 .= "\x00\x00\x00\x00"; // last mod time and date

        $unc_len = strlen($data); 
        $crc = crc32($data); 
        $zdata = gzcompress($data); 
        $zdata = substr( substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
        $c_len = strlen($zdata); 
        $fr .= pack("V",$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; 
        // end of "local file header" segment
       
        // "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 .="\x00\x00\x00\x00"; // 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", $this -> old_offset ); //relative offset of local header
//      &n // bsp; echo "old offset is ".$this->old_offset.", new offset is $new_offset<br>";
        $this -> old_offset = $new_offset;

        $cdrec .= $name; 
        // optional extra field, file comment goes here
        // save to central directory
        $this -> ctrl_dir[] = $cdrec; 
    }

    function file() { // dump out 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
    }
} 

?>



test.php:

<?
include("zip.lib.php");

$zipfile = new zipfile();

$i = 0;
$path = "../";
$mapper = Array("usr_images/", "usr_files/", "usr_gallery/");

foreach ($mapper as $mappe) {//Løb de specificerede mapper igennem

$zipfile -> add_dir($mappe);//Opret mapper i zip-fil

# Laver et array med filerne
$handle = opendir($path . $mappe);
    while (($fil = readdir($handle)) !== false) {
    if (($fil != "." && $fil != "..") && strstr($fil, ".")) {
    $filer[] = $fil;
    }
}

closedir($handle);

while($i < count($filer) && $filer[$i] != "") {
$fra = $path . $mappe . $filer[$i];

$fp = fopen($fra, "r");
$file = fread($fp, filesize($fra));
fclose($fp);

$til = $mappe . $filer[$i];
$zipfile -> add_file($file, $til);
$i++;
}

}

$fil_navn = "Fil-backup";
$dags_dato = date ("d-m-Y");

header("Content-disposition: attachment; filename=$fil_navn $dags_dato.zip");
header("Content-type: application/ms-download");
header("Pragma: no-cache");
header("Expires: 0");
echo $zipfile -> file();