Beispiele

See also the examples under rar:// wrapper.

Beispiel #1 On-the-fly decompression


<?php

if (!array_key_exists("i", $_GET) || !is_numeric($_GET["i"]))
    die("Index unspecified or non-numeric");
$index = (int) $_GET["i"];
    
$arch = RarArchive::open("example.rar");
if ($arch === FALSE)
    die("Cannot open example.rar");

$entries = $arch->getEntries();
if ($entries === FALSE)
    die("Cannot retrieve entries");

if (!array_key_exists($index, $entries))
    die("No such index: $index");

$orfilename = $entries[$index]->getName(); //UTF-8 encoded

$filesize = $entries[$index]->getUnpackedSize();

/* you could check HTTP_IF_MODIFIED_SINCE here and compare with
 * $entries[$index]->getFileTime(). You could also send a
 * "Last modified" header */

$fp = $entries[$index]->getStream();
if ($fp === FALSE)
    die("Cannot open file with index $index insided the archive.");

$arch->close(); //no longer needed; stream is independent

function detectUserAgent() {
    if (!array_key_exists('HTTP_USER_AGENT', $_SERVER))
        return "Other";
    
    $uas = $_SERVER['HTTP_USER_AGENT'];
    if (preg_match("@Opera/@", $uas))
        return "Opera";
    if (preg_match("@Firefox/@", $uas))
        return "Firefox";
    if (preg_match("@Chrome/@", $uas))
        return "Chrome";
    if (preg_match("@MSIE ([0-9.]+);@", $uas, $matches)) {
        if (((float)$matches[1]) >= 7.0)
            return "IE";
    }
    
    return "Other";
}

/*
 * We have 3 options:
 * - For FF and Opera, which support RFC 2231, use that format.
 * - For IE and Chrome, use attwithfnrawpctenclong
 *   (http://greenbytes.de/tech/tc2231/#attwithfnrawpctenclong)
 * - For the others, convert to ISO-8859-1, if possible
 */
$formatRFC2231 = 'Content-Disposition: attachment; filename*=UTF-8\'\'%s';
$formatDef = 'Content-Disposition: attachment; filename="%s"';

switch (detectUserAgent()) {
    case "Opera":
    case "Firefox":
        $orfilename = rawurlencode($orfilename);
        $format = $formatRFC2231;
        break;

    case "IE":
    case "Chrome":
        $orfilename = rawurlencode($orfilename);
        $format = $formatDef;
        break;
    default:
        if (function_exists('iconv'))
            $orfilename =
                @iconv("UTF-8", "ISO-8859-1//TRANSLIT", $orfilename);
        $format = $formatDef;
}

header(sprintf($format, $orfilename));
//cannot send error messages from now on (headers already sent)

//replace by real content type, perhaps infering from the file extension
$contentType = "application/octet-stream";
header("Content-Type: $contentType");

header("Content-Transfer-Encoding: binary");

header("Content-Length: $filesize");

if ($_SERVER['REQUEST_METHOD'] == "HEAD")
    die();
    
while (!feof($fp)) {
    $s = @fread($fp, 8192);
    if ($s === false)
        break; //useless to send error messages
  
    echo $s;
}
?>

This example opens a RAR file and presents the requested file inside the RAR archive for download to the client.

Beispiel #2 RAR extension filesystem extraction example


<?php

$rar_file = rar_open('example.rar') or die("Can't open Rar archive");

$entries = rar_list($rar_file);

foreach ($entries as $entry) {
    echo 'Filename: ' . $entry->getName() . "\n";
    echo 'Packed size: ' . $entry->getPackedSize() . "\n";
    echo 'Unpacked size: ' . $entry->getUnpackedSize() . "\n";

    $entry->extract('/dir/extract/to/');
}

rar_close($rar_file);

?>

This example opens a RAR file archive and extracts each entry to the specified directory.

2 BenutzerBeiträge:
- Beiträge aktualisieren...

Nitrogen
17.11.2010 17:43


A veeery simple function to RAR files, I'm not proud of it.

Since there's no way to create RAR files in PHP (due to licensing, patents or whatever), I'm taking some advantage from the command-line RARing tool that comes with WinRAR (in the WinRAR program files named "rar.exe").



<?php

function RARFiles($Output='output.rar',$Files=array()) {

  $Data='';

  for($i=0;$i<count($Files);$i++)

    $Data.="\"{$Files[$i]}\" ";

  exec("rar.exe a \"{$Output}\" {$Data}");

}



$Files=array('file1.ext','file2.ext','file3.ext');

RARFiles('asdf.rar',$Files);

// asdf.rar created.

?>



There's no error checking, so make sure you check that your expected RAR file exists before doing anything with it.

Hopefully one day, PHP will be able to be allowed to create RAR files.

landavia81 at gmail dot com
21.01.2009 19:00


for unknown reason.. many programer has problem with php_rar (in windows).. i came up with this ... and it work.



basicly is same as above but only extract only. The problem will come up if the file rar corrupt, exist and soon

_______________________________

<?php

$appRar ="C:/Program Files/WinRAR/unrar.exe";  

#this is false..

   

$appRar = '"C:\Program Files\WinRAR\unrar.exe"'; 

#change this 

$opt="e";

$target="1.rar";



$do ="$appRar $opt $target";



exec($do,$aOut); 

print_r($aOut);



?>

-------------------------------------------------

For windows user: try using bat file for test.



all user: please read man unrar, above using e because this only extract. But you should notice about other option like "y","x", etc



i type the option here if you too lazy

http://landavia.multiply.com/journal/item/284/option_for_unrar



$aOut are array for the output after you run the script $do

Ein Service von Reinhard Neidl - Webprogrammierung.

Beispiele